[8u60] Approval request for 8069072: Improve GHASH performance

[Florian Weimer]

Please approve the backport of the AES-GCM performance fix to 8u60.

Bug: https://bugs.openjdk.java.net/browse/JDK-8073153
JDK9 changeset: http://hg.openjdk.java.net/jdk9/dev/jdk/rev/054e5baae476
JDK9 review:
http://mail.openjdk.java.net/pipermail/security-dev/2015-February/011699.html
JDK8 webrev: http://cr.openjdk.java.net/~fweimer/8073153/webrev.00/

The backport is identical to the JDK9 changeset except for the usual
patch reshuffling.

(Someone will have to commit this for me.)

-- 
Florian Weimer / Red Hat Product Security