[jdk21u] RFR: 8312466: /bin/nm usage in AIX makes needs -X64 flag

[Andreas Steiner]

8312466: /bin/nm  usage in AIX makes needs -X64 flag

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Commit messages:
 - Backport 44576a7cca18108adafa7efe88de2a4655e9b074

Changes: https://git.openjdk.org/jdk21u/pull/145/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21u&pr=145&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8312466
  Stats: 6 lines in 1 file changed: 6 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u/pull/145.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u.git pull/145/head:pull/145

PR: https://git.openjdk.org/jdk21u/pull/145