RFR: 8351034: Add AVX-512 intrinsics for ML-DSA [v7]

[Leonid Mesnik]

On Wed, 12 Mar 2025 19:19:08 GMT, Ferenc Rakoczi <duke at openjdk.org> wrote:

>> By using the AVX-512 vector registers the speed of the computation of the ML-DSA algorithms (key generation, document signing, signature verification) can be approximately doubled.
>
> Ferenc Rakoczi has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Made the intrinsics test separate from the pure java test.

Test changes looks good.

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Marked as reviewed by lmesnik (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/23860#pullrequestreview-2691165965