RFR: 8359114: [s390x] Add z17 detection code [v4]

[duke]

On Mon, 28 Jul 2025 13:10:36 GMT, Manjunath S Matti. <duke at openjdk.org> wrote:

>> Add support to detect the new generation of Z machine (z17).
>
> Manjunath S Matti. has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains three commits:
> 
>  - Update full name
>  - Correct the comments for the bits covered in DW[2] and DW[3].
>  - Add support to detect the new generation of Z machine (z17).

@mmatti-sw 
Your change (at version 5c31caeaa406663ab26076fba705653ea09ed794) is now ready to be sponsored by a Committer.

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PR Comment: https://git.openjdk.org/jdk/pull/25718#issuecomment-3199603854