RFR: 8348561: Add aarch64 intrinsics for ML-DSA [v2]

[Andrew Dinn]

On Thu, 30 Jan 2025 16:14:27 GMT, Ferenc Rakoczi <duke at openjdk.org> wrote:

>> By using the aarch64 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:
> 
>   Use SHA3Parallel for matrix generation

@ferakocz I'm afraid you lucked out on getting your change committed before my reorganization of the stub generation code. If you are unsure of how to do the merge so your new stub is declared and generated following the new model (see the doc comments in stubDeclarations.hpp for details) let me know and I'll be happy to help you sort it out.

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PR Comment: https://git.openjdk.org/jdk/pull/23300#issuecomment-2624962113