RFR: 8289801: [IR Framework] Add flags to whitelist which can be used to simulate a specific machine setup like UseAVX

[Jie Fu]

Hi all,

Please review this trivial change which adds `UseAVX, UseSSE and UseSVE` to the whitelist of IR test framework.

Thanks.
Best regards,
Jie

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Commit messages:
 - 8289801: [IR Framework] Add flags to whitelist which can be used to simulate a specific machine setup like UseAVX

Changes: https://git.openjdk.org/jdk/pull/9509/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=9509&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8289801
  Stats: 3 lines in 1 file changed: 3 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/9509.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9509/head:pull/9509

PR: https://git.openjdk.org/jdk/pull/9509