RFR: 8341052: SHA-512 implementation using SHA-NI [v2]

[Smita Kamath]

> 8341052: SHA-512 implementation using SHA-NI

Smita Kamath has updated the pull request incrementally with one additional commit since the last revision:

  Updated code as per review comment & updated test case

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Changes:
  - all: https://git.openjdk.org/jdk/pull/20633/files
  - new: https://git.openjdk.org/jdk/pull/20633/files/16298c56..afeb5028

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=20633&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=20633&range=00-01

  Stats: 20 lines in 8 files changed: 2 ins; 1 del; 17 mod
  Patch: https://git.openjdk.org/jdk/pull/20633.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20633/head:pull/20633

PR: https://git.openjdk.org/jdk/pull/20633