[8] Request for Review: 8022461: Fix lint warnings in sun.security.{provider, rsa, x509}

[Jason Uh]

Joe, Sean,

Could I please get a review of this changeset? This change fixes 
deprecation warnings in:
  sun.security.provider
  sun.security.rsa
  sun.security.x509

In sun.security.provider and sun.security.rsa, I change the use of 
sun.security.x509.X509Key's key bytes to the BitArray form of the key.

Webrev: http://cr.openjdk.java.net/~juh/8022461/webrev.00/

Thanks,
Jason