RFR: 8371450: AES performance improvements for key schedule generation [v2]

[Shawn M Emery]

> This fix improves performance in the AES key schedule generation by eliminating an unnecessary object and unnecessary mask in the inverse key schedule.
> 
> The micro:org.openjdk.bench.javax.crypto.AESReinit benchmark results are improved by 6.96% for arm64 and 7.79% for x86_64.
> 
> Thank you @jnimeh for catching the unnecessary byte mask!

Shawn M Emery has updated the pull request incrementally with one additional commit since the last revision:

  Updates for code review comments from @jnimeh

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/28188/files
  - new: https://git.openjdk.org/jdk/pull/28188/files/c462a58e..0e9d14f9

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28188&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28188&range=00-01

  Stats: 23 lines in 1 file changed: 10 ins; 2 del; 11 mod
  Patch: https://git.openjdk.org/jdk/pull/28188.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28188/head:pull/28188

PR: https://git.openjdk.org/jdk/pull/28188