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

[Sandhya Viswanathan]

On Thu, 15 May 2025 13:33:42 GMT, Ferenc Rakoczi <duke at openjdk.org> wrote:

>> 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.

Looks good to me.

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Marked as reviewed by sviswanathan (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/24953#pullrequestreview-2855056310