RFR: 8351891: Disable TestBreakSignalThreadDump.java#with_jsig and XCheckJSig.java on static JDK

[Jiangli Zhou]

Please review this change that disables TestBreakSignalThreadDump.java#with_jsig and XCheckJSig.java on static JDK. Thanks

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Commit messages:
 - Disable TestBreakSignalThreadDump.java#with_jsig and XCheckJSig.java on static JDK.

Changes: https://git.openjdk.org/jdk/pull/24020/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24020&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8351891
  Stats: 2 lines in 2 files changed: 2 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/24020.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24020/head:pull/24020

PR: https://git.openjdk.org/jdk/pull/24020