[jdk21u] RFR: 8319195: Move most tier 1 vector API regression tests to tier 3

[Aleksey Shipilev]

Clean backport to improve test performance.

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Commit messages:
 - Backport 9dc40ba48ec15d5775537c4c2224ee5bb563629a

Changes: https://git.openjdk.org/jdk21u/pull/391/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21u&pr=391&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8319195
  Stats: 20 lines in 1 file changed: 0 ins; 20 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u/pull/391.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u.git pull/391/head:pull/391

PR: https://git.openjdk.org/jdk21u/pull/391