Need to update makefile when official compiler switches to SS12u3

We need changes in the makefiles to update the official compiler version so that use of S12u3 doesn't produce warnings.

make/solaris/makefiles/sparcWorks.make

# Pick which compiler is validated
ifeq ($(JRE_RELEASE_VER),1.6.0)
  # Validated compiler for JDK6 is SS11 (5.8)
  VALIDATED_COMPILER_REVS := 5.8
  VALIDATED_CC_COMPILER_REVS := 5.8
else
  # Validated compiler for JDK7 is SS12 update 1 + patches (5.10)
  VALIDATED_COMPILER_REVS := 5.10
  VALIDATED_CC_COMPILER_REVS := 5.10
endif


Of course now we don't have hotspot express we can scrap the entries for JDK 6 and 7.