RFR: 8303351: [IR Framework] Add missing cpu feature avx512bw after JDK-8302681

[Jie Fu]

Hi all,

testlibrary_tests/ir_framework/tests/TestCPUFeatureCheck.java fails on our AVX512 machines.
This is because `avx512bw` isn't in the verified list after JDK-8302681.

Let's fix it.

Thanks.
Best regards,
Jie

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Commit messages:
 - 8303351: [IR Framework] Add missing cpu feature avx512bw after JDK-8302681

Changes: https://git.openjdk.org/jdk/pull/12785/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12785&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8303351
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/12785.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12785/head:pull/12785

PR: https://git.openjdk.org/jdk/pull/12785