RFR: 8351412: Add AVX-512 intrinsics for ML-KEM [v6]

[Ferenc Rakoczi]

> By using the AVX-512 vector registers the speed of the computation of the ML-KEM algorithms (key generation, encapsulation, decapsulation) can be approximately doubled.

Ferenc Rakoczi has updated the pull request incrementally with one additional commit since the last revision:

  Response to review comment + loading constants with broadcast op.

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Changes:
  - all: https://git.openjdk.org/jdk/pull/24953/files
  - new: https://git.openjdk.org/jdk/pull/24953/files/32571f39..e4f3264e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24953&range=05
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24953&range=04-05

  Stats: 107 lines in 1 file changed: 39 ins; 39 del; 29 mod
  Patch: https://git.openjdk.org/jdk/pull/24953.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24953/head:pull/24953

PR: https://git.openjdk.org/jdk/pull/24953