RFR: 8371354: Problem list serviceability/sa/TestJhsdbJstackMixedWithXComp.java due to JDK-8371194

[Chris Plummer]

This test failure is noisy so we need to problem list it. Testing in progress to make sure it really is excluded. I'd like to push this as trivial.

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Commit messages:
 - problem list sa test

Changes: https://git.openjdk.org/jdk/pull/28152/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=28152&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8371354
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/28152.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28152/head:pull/28152

PR: https://git.openjdk.org/jdk/pull/28152