RFR: 8359135: New test TestCPUTimeSampleThrottling fails intermittently

[Johannes Bechberger]

I increased the tolerated rate deviation to make the test less flaky on systems like PowerPC. The deviation comes from the thread not being in the Java and native states on some platforms compared to others.

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Commit messages:
 - 8359135: New test TestCPUTimeSampleThrottling fails intermittently

Changes: https://git.openjdk.org/jdk/pull/25745/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25745&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8359135
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/25745.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25745/head:pull/25745

PR: https://git.openjdk.org/jdk/pull/25745