[jdk24u] RFR: 8349150: Support precompiled headers on AIX

[Matthias Baesken]

8349150: Support precompiled headers on AIX

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Commit messages:
 - Backport beae8843b9b2433af5e9fbe420b17e663cbdb960

Changes: https://git.openjdk.org/jdk24u/pull/80/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk24u&pr=80&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8349150
  Stats: 16 lines in 2 files changed: 7 ins; 6 del; 3 mod
  Patch: https://git.openjdk.org/jdk24u/pull/80.diff
  Fetch: git fetch https://git.openjdk.org/jdk24u.git pull/80/head:pull/80

PR: https://git.openjdk.org/jdk24u/pull/80