RFR: 8306765: Some client related jtreg problem list entries are malformed

[Phil Race]

There were missing platforms in a couple of problem list entries.
I verified the intended platforms are still needed and the other platforms pass.

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Commit messages:
 - 8306765

Changes: https://git.openjdk.org/jdk/pull/13626/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13626&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8306765
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/13626.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13626/head:pull/13626

PR: https://git.openjdk.org/jdk/pull/13626