RFR: 8352615: [Test] RISC-V: TestVectorizationMultiInvar.java fails on riscv64 without rvv support

[Hamlin Li]

Hi,
Can you help to review this trivial patch?
TestVectorizationMultiInvar.java fails on riscv if rvv is not support, as it will verify the `MaxVectorSize > 0` in test framework.

Thanks!

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Commit messages:
 - copyright
 - initial commit

Changes: https://git.openjdk.org/jdk/pull/24157/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24157&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8352615
  Stats: 3 lines in 1 file changed: 1 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/24157.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24157/head:pull/24157

PR: https://git.openjdk.org/jdk/pull/24157