RFR 8037745: Consider re-enabling PKCS11 mechanisms previously disabled due to Solaris bug 7050617

[Valerie (Yu-Ching) Peng]

Tony,

Can you please help reviewing this PKCS11 provider configuration file 
change?
This is for removing the digest related mechs from the disabledMechanism 
section now that relevant native bugs have been fixed.

Webrev: http://cr.openjdk.java.net/~valeriep/8037745/webrev.00/

Thanks,
Valerie