[jdk17u-dev] RFR: 8271078: jdk/incubator/vector/Float128VectorTests.java failed a subtest

[Goetz Lindenmaier]

I backport this for parity with 17.0.5-oracle.

I had to resolve two chunks because a "if (UseAVX < 3) {" is in the context.

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Commit messages:
 - Backport b0892295ee12c0c58c0121ff7f5f585b32d60eeb

Changes: https://git.openjdk.org/jdk17u-dev/pull/490/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=490&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8271078
  Stats: 6 lines in 1 file changed: 0 ins; 0 del; 6 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/490.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev pull/490/head:pull/490

PR: https://git.openjdk.org/jdk17u-dev/pull/490