RFR: 8350909: [JMH] test ThreadOnSpinWaitShared failed for 2 threads config

[Vladimir Ivanov]

The scope was updated to support multithread configuration (jmh option '-t 2') . No other changes needed.

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Commit messages:
 - JDK-8350909 [JMH] test ThreadOnSpinWaitShared failed for 2 threads config

Changes: https://git.openjdk.org/jdk/pull/23834/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23834&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8350909
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/23834.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23834/head:pull/23834

PR: https://git.openjdk.org/jdk/pull/23834