[9] RFR 8079898: Resolve disabled warnings for libj2ucrypto

[Valerie Peng]

Anyone can help reviewing this?

The fix is straight forward, just renamed the DEBUG to J2UC_DEBUG to 
address the E_MACRO_REDEFINED warning.
In addition, I also updated the nativeCrypto.h to remove the workaround 
for a Solaris12-specific issue which has now been fixed.


Bug: https://bugs.openjdk.java.net/browse/JDK-8079898
Webrev: http://cr.openjdk.java.net/~valeriep/8079898/webrev.00/

JPRT result looks fine.

Thanks,

Valerie