RFR: 8361599: [PPC64] enable missing tests via jtreg requires

[David Briemann]

Some tests are not executed on PPC little or big endian because the current requires annotation only checks for "ppc64" or "ppc64le" but not both.

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Commit messages:
 - 8361599: [PPC64] enable missing tests via jtreg requires

Changes: https://git.openjdk.org/jdk/pull/26184/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=26184&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8361599
  Stats: 3 lines in 3 files changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/26184.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26184/head:pull/26184

PR: https://git.openjdk.org/jdk/pull/26184