[javadoc] fix some errors in 2D

JDK build doclint errors:

/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/Font.java:74: error: header used out of sequence: <H4>
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/Font.java:200: error: unexpected end tag: </p>
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/FontMetrics.java:55: error: repeated attribute: ALIGN
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/Graphics2D.java:1106: error: tag not allowed here: <blockquote>
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/Graphics2D.java:81: error: invalid name for anchor: "#deftransform"
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/GraphicsConfiguration.java:84: error: malformed HTML
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/GraphicsConfiguration.java:88: error: malformed HTML
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/GraphicsDevice.java:53: error: malformed HTML
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/GraphicsDevice.java:57: error: malformed HTML
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/Image.java:127: error: unexpected text
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/LinearGradientPaint.java:97: error: no "alt" attribute for image
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/MediaTracker.java:91: error: malformed HTML
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/MediaTracker.java:130: error: bad use of '>'
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/MediaTracker.java:152: error: bad HTML entity
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/PageAttributes.java:194: error: bad HTML entity
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/PageAttributes.java:190: error: bad HTML entity
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/PageAttributes.java:198: error: bad HTML entity
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/PageAttributes.java:202: error: bad HTML entity
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/PageAttributes.java:238: error: bad HTML entity
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/PageAttributes.java:206: error: bad HTML entity
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/PageAttributes.java:210: error: bad HTML entity
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/PageAttributes.java:214: error: bad HTML entity
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/PageAttributes.java:218: error: bad HTML entity
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/PageAttributes.java:222: error: bad HTML entity
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/PageAttributes.java:226: error: bad HTML entity
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/PageAttributes.java:230: error: bad HTML entity
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/PageAttributes.java:234: error: bad HTML entity
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/RadialGradientPaint.java:83: error: no "alt" attribute for image
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/RadialGradientPaint.java:90: error: no "alt" attribute for image
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/RadialGradientPaint.java:120: error: no "alt" attribute for image
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/RadialGradientPaint.java:144: error: no "alt" attribute for image
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/Rectangle.java:81: error: malformed HTML
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/Rectangle.java:88: error: malformed HTML
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/RenderingHints.java:1009: error: unexpected text
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/RenderingHints.java:1044: error: unexpected text
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/RenderingHints.java:1062: error: unexpected text
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/RenderingHints.java:1064: error: unexpected text
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/RenderingHints.java:1066: error: unexpected text
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/RenderingHints.java:1108: error: unexpected text
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/RenderingHints.java:1124: error: unexpected text
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/RenderingHints.java:1127: error: unexpected text
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/font/LineBreakMeasurer.java:128: error: malformed HTML
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/font/LineBreakMeasurer.java:173: error: malformed HTML
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/font/LineBreakMeasurer.java:217: error: bad use of '>'
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/font/LineBreakMeasurer.java:223: error: bad use of '>'
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/font/MultipleMaster.java:44: error: bad use of '>'
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/font/NumericShaper.java:1215: error: bad HTML entity
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/font/OpenType.java:36: error: malformed HTML
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/font/OpenType.java:36: error: bad use of '>'
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/font/OpenType.java:36: error: unexpected end tag: </a>
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/font/TextAttribute.java:69: error: header used out of sequence: <H4>
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/font/TextAttribute.java:100: error: block element not allowed within inline element <font>: table
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/geom/AffineTransform.java:50: error: block element not allowed within inline element <a>: h4
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/geom/FlatteningPathIterator.java:339: error: unexpected text
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/geom/FlatteningPathIterator.java:374: error: unexpected text
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/geom/FlatteningPathIterator.java:112: error: unexpected text
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/geom/Line2D.java:626: error: unknown tag: true
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/geom/Line2D.java:252: error: bad use of '>'
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/geom/Line2D.java:85: error: bad use of '>'
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/geom/Path2D.java:1929: error: unexpected text
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/geom/Path2D.java:1931: error: unexpected text
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/geom/Path2D.java:1523: error: malformed HTML
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/geom/Path2D.java:1613: error: no summary or caption for table
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/geom/Path2D.java:777: error: anchor already defined: Path2DSerialData
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/geom/Path2D.java:797: error: malformed HTML
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/geom/Path2D.java:887: error: no summary or caption for table
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/image/MultiPixelPackedSampleModel.java:351: error: reference not found
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/print/Book.java:132: error: unexpected text
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/print/Book.java:149: error: unexpected text
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/print/PageFormat.java:289: error: unexpected text
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/print/Printable.java:79: error: malformed HTML
/local/work/jdk8/jdk8/jdk/src/share/classes/java/awt/print/PrinterJob.java:124: error: bad use of '>'