RFR: 8267125: AES Galois CounterMode (GCM) interleaved implementation using AVX512 + VAES instructions

[Smita Kamath]

I would like to submit AES-GCM optimization for x86_64 architectures supporting AVX3+VAES (Evex encoded AES). This optimization interleaves AES and GHASH operations.
Performance gain of ~1.5x - 2x for message sizes 8k and above.

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Commit messages:
 - Merge master
 - JDK-8267125: AES Galois CounterMode (GCM) interleaved implementation using AVX512 + VAES instructions

Changes: https://git.openjdk.java.net/jdk/pull/4019/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=4019&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8267125
  Stats: 1017 lines in 21 files changed: 983 ins; 11 del; 23 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4019.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4019/head:pull/4019

PR: https://git.openjdk.java.net/jdk/pull/4019