RFR: 8348561: Add aarch64 intrinsics for ML-DSA [v8]

[Sean Mullan]

On Fri, 28 Feb 2025 06:22:09 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 with a new target base due to a merge or a rebase. The pull request now contains 13 commits:
> 
>  - Merged master.
>  - Added more comments, mainly as suggested by Andrew Dinn
>  - Changed aarch64-asmtest.py as suggested by Bhavana-Kilambi
>  - Accepting suggested change from Andrew Dinn
>  - Added comments suggested by Andrew Dinn
>  - Fixed copyright years
>  - renaming a couple of functions
>  - Adding comments + some code reorganization
>  - removed debugging code
>  - merging master
>  - ... and 3 more: https://git.openjdk.org/jdk/compare/ab4b0ef9...d82dfb2f

I think it would be nice to add a release note for this describing the approximate performance improvement.

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PR Comment: https://git.openjdk.org/jdk/pull/23300#issuecomment-2697841749