[jdk17u-dev] RFR: 8274170: Add hooks for custom makefiles to augment jtreg test execution

[Goetz Lindenmaier]

I backport this for parity with 17.0.14-oracle.

I had to resolve due to context diffs.

-------------

Commit messages:
 - Backport 14100d55dc822a7eb4f3e499aa9077e7ad17b2a6

Changes: https://git.openjdk.org/jdk17u-dev/pull/3066/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3066&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8274170
  Stats: 6 lines in 1 file changed: 3 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/3066.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/3066/head:pull/3066

PR: https://git.openjdk.org/jdk17u-dev/pull/3066