RFR: 8292716: Configure should check that jtreg is of the required version

Mon Aug 22 13:03:00 UTC 2022

While reviewing the PR for [JDK-8289798](https://bugs.openjdk.org/browse/JDK-8289798) (switching to jtreg 7) I realized that it would be better if configure checked if the provided jtreg is of the minimum required version.

This PR is dependent on https://github.com/openjdk/jdk/pull/9964, so what you see here is a diff relative to that PR, and it can't be merged until that PR has been merged.

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Depends on: https://git.openjdk.org/jdk/pull/9964

Commit messages:
 - 8292716: Configure should check that jtreg is of the required version

Changes: https://git.openjdk.org/jdk/pull/9965/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=9965&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8292716
  Stats: 19 lines in 1 file changed: 19 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/9965.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9965/head:pull/9965

PR: https://git.openjdk.org/jdk/pull/9965