[jdk25u] RFR: 8367616: RISC-V: Auto-enable Zicboz extension for debug builds

[duke]

On Tue, 16 Sep 2025 05:16:14 GMT, Dingli Zhang <dzhang at openjdk.org> wrote:

> Hi all,
> 
> This pull request contains a backport of commit [90e81c2b](https://github.com/openjdk/jdk/commit/90e81c2bee86f404250fb9b833d43b18190b5272) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.
> 
> The commit being backported was authored by Dingli Zhang on 16 Sep 2025 and was reviewed by Fei Yang and Feilong Jiang.
> 
> Thanks!

@DingliZhang 
Your change (at version 34dfa7b080e158c1c1423281256940921cac342b) is now ready to be sponsored by a Committer.

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PR Comment: https://git.openjdk.org/jdk25u/pull/202#issuecomment-3300775169