[jdk17u-dev] RFR: 8357173: Split jtreg test group jdk tier3

[Goetz Lindenmaier]

I backport this for parity with 17.0.17-oracle.

Resolved copyright, probably clean anyways.

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Commit messages:
 - Backport e2c7c40816dcc9544b885ff63c8dff3f9f8b4ad6

Changes: https://git.openjdk.org/jdk17u-dev/pull/3806/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3806&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8357173
  Stats: 12 lines in 1 file changed: 10 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/3806.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/3806/head:pull/3806

PR: https://git.openjdk.org/jdk17u-dev/pull/3806