Update KeySize Restrictions sections of Oracle Providers doc

Need to update the KeySize Restrictions sections in the Oracle Providers Documentation for JDK 9 to reflect the changes in JDK-8072452 with the values that are now supported.

1. Sun Provider

KeyPairGenerator

DSA 1024 Keysize must be a multiple of 64, ranging from 512 to 1024 (inclusive), or 2048.
Change to: "Keysize must be a multiple of 64, ranging from 512 to 1024 (inclusive), 2048, or 3072."

AlgorithmParameterGenerator

DSA 1024 Keysize must be a multiple of 64, ranging from 512 to 1024 (inclusive), or 2048.
Change to: "Keysize must be a multiple of 64, ranging from 512 to 1024 (inclusive), 2048, or 3072."

2. SunJCE Provider

KeyPairGenerator

Diffie-Hellman (DH) 1024 Keysize must be a multiple of 64, ranging from 512 to 2048 (inclusive).
Change to: "Keysize must be a multiple of 64, ranging from 512 to 1024 (inclusive), 1536, 2048, 3072, 4096, 6144, or 8192

AlgorithmParameterGenerator

Diffie-Hellman (DH) 1024 Keysize must be a multiple of 64, ranging from 512 to 2048 (inclusive).
Change to: -> "Keysize must be a multiple of 64, ranging from 512 to 1024 (inclusive), 2048, or 3072."