RFR: 8373069: RISC-V: implement GHASH intrinsic [v4]

[Anjian Wen]

> support GHASH intrinsic for crypt GCM, which need zvkg extension. 
> 
> passed the tests in 
> test/hotspot/jtreg/compiler/codegen/aes/
> test/jdk/com/sun/crypto

Anjian Wen has updated the pull request incrementally with one additional commit since the last revision:

  modify format

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/28548/files
  - new: https://git.openjdk.org/jdk/pull/28548/files/fc63cb77..3bf38390

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28548&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28548&range=02-03

  Stats: 4 lines in 2 files changed: 0 ins; 1 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/28548.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28548/head:pull/28548

PR: https://git.openjdk.org/jdk/pull/28548