RFR: JDK-8325037: x86: enable and fix hotspot/jtreg/compiler/vectorization/TestRoundVectFloat.java

[Hamlin Li]

Hi,
Can you help to review this simple patch to fix test TestRoundVectFloat.java?
Thanks!

FYI: This test is not actually tested, need to fix the test applying filter and IR matching rule.

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Commit messages:
 - fix copyright
 - Initial commit

Changes: https://git.openjdk.org/jdk/pull/17649/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=17649&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8325037
  Stats: 3 lines in 1 file changed: 0 ins; 1 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/17649.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17649/head:pull/17649

PR: https://git.openjdk.org/jdk/pull/17649