RFR: 8295713: runtime/ParallelLoad/SuperWait/SuperWaitTest.java fails intermittently on Windows

[Coleen Phillimore]

I added another semaphore so the test will run in the order I want it to.  Alternate suggestions or corrections welcome.
Running with GHA, and our tier1 in progress.

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Commit messages:
 - 8295713: runtime/ParallelLoad/SuperWait/SuperWaitTest.java fails intermittently on Windows

Changes: https://git.openjdk.org/jdk/pull/10822/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10822&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8295713
  Stats: 8 lines in 1 file changed: 7 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/10822.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10822/head:pull/10822

PR: https://git.openjdk.org/jdk/pull/10822