RFR: 8332923: ObjectMonitorUsage.java failed with unexpected waiter_count

[SendaoYan]

Hi all,
  ObjectMonitorUsage.java failed with `unexpected waiter_count` after [JDK-8328083](https://bugs.openjdk.org/browse/JDK-8328083) on linux x86_32. It should be predicated with `@requires vm.continuations` to be skipped.

Additional testing:
- [x] linux x86_32, test has been skiped.
- [x] linux x86_64, test still work.

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Commit messages:
 - 8332923: ObjectMonitorUsage.java failed with unexpected waiter_count

Changes: https://git.openjdk.org/jdk/pull/19405/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19405&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8332923
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/19405.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19405/head:pull/19405

PR: https://git.openjdk.org/jdk/pull/19405