[jdk23u] RFR: 8333248: VectorGatherMaskFoldingTest.java failed when maximum vector bits is 64

[Gui Cao]

Hi, The same issue also exists in the jdk23u. I would like to backport 8333248 to jdk23u. This is a risc-v specific change. Backport is clean, risk is low.

### Testing
- [x] Run VectorGatherMaskFoldingTest.java on SOPHON SG2042 (without RVV1.0)
- [x] Run VectorGatherMaskFoldingTest.java on aarch64 server mode with neon
- [x] Run VectorGatherMaskFoldingTest.java on aarch64 client mode without `-XX:+IncrementalInlineForceCleanup` Option

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Commit messages:
 - Backport 9b0a5c5cd056262fab99525e9260762b617152a3

Changes: https://git.openjdk.org/jdk23u/pull/103/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk23u&pr=103&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8333248
  Stats: 29 lines in 1 file changed: 0 ins; 0 del; 29 mod
  Patch: https://git.openjdk.org/jdk23u/pull/103.diff
  Fetch: git fetch https://git.openjdk.org/jdk23u.git pull/103/head:pull/103

PR: https://git.openjdk.org/jdk23u/pull/103