RFR: 8351034: Add AVX-512 intrinsics for ML-DSA [v11]

[Jatin Bhateja]

On Sat, 22 Mar 2025 20:02:31 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 two additional commits since the last revision:
> 
>  - Further readability improvements.
>  - Added asserts for array sizes

src/hotspot/cpu/x86/vm_version_x86.cpp line 1252:

> 1250:   // Currently we only have them for AVX512
> 1251: #ifdef _LP64
> 1252:   if (supports_evex() && supports_avx512bw()) {

supports_evex check looks redundant.

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PR Review Comment: https://git.openjdk.org/jdk/pull/23860#discussion_r2009379308