[jdk18u] RFR: 8281544: assert(VM_Version::supports_avx512bw()) failed for Tests jdk/incubator/vector/

[Tobias Hartmann]

Backport of [JDK-8281544](https://bugs.openjdk.java.net/browse/JDK-8281544). Applies cleanly. Approval is pending.

Thanks,
Tobias

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Commit messages:
 - 8281544: assert(VM_Version::supports_avx512bw()) failed for Tests jdk/incubator/vector/

Changes: https://git.openjdk.java.net/jdk18u/pull/66/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk18u&pr=66&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8281544
  Stats: 14 lines in 2 files changed: 12 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk18u/pull/66.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk18u pull/66/head:pull/66

PR: https://git.openjdk.java.net/jdk18u/pull/66