[jdk21u] RFR: 8311938: Add default cups include location for configure on AIX

[Matthias Baesken]

8311938: Add default cups include location for configure on AIX

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Commit messages:
 - Backport c4b8574b94c1987d45fae8d9d39acf4883363591

Changes: https://git.openjdk.org/jdk21u/pull/138/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21u&pr=138&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8311938
  Stats: 15 lines in 1 file changed: 8 ins; 0 del; 7 mod
  Patch: https://git.openjdk.org/jdk21u/pull/138.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u.git pull/138/head:pull/138

PR: https://git.openjdk.org/jdk21u/pull/138