[jdk25u] RFR: 8361532: RISC-V: Several vector tests fail after JDK-8354383

[Dingli Zhang]

Hi all,

This pull request contains a backport of commit [e0245682](https://github.com/openjdk/jdk/commit/e0245682c8d5a0daae055045c81248c12fb23c09) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.

The commit being backported was authored by Dingli Zhang on 9 Jul 2025 and was reviewed by Fei Yang, Feilong Jiang and Gui Cao.

Thanks

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Commit messages:
 - Backport e0245682c8d5a0daae055045c81248c12fb23c09

Changes: https://git.openjdk.org/jdk25u/pull/15/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk25u&pr=15&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8361532
  Stats: 11 lines in 1 file changed: 11 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk25u/pull/15.diff
  Fetch: git fetch https://git.openjdk.org/jdk25u.git pull/15/head:pull/15

PR: https://git.openjdk.org/jdk25u/pull/15