[jdk17u-dev] RFR: 8271821: mark hotspot runtime/MinimalVM tests which ignore external VM flags

[Goetz Lindenmaier]

I backport this  to improve testing in 17.

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Commit messages:
 - Backport 3d40cac8ce3cb087788cdaa04d567eee4a1d8052

Changes: https://git.openjdk.org/jdk17u-dev/pull/2935/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2935&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8271821
  Stats: 12 lines in 6 files changed: 6 ins; 0 del; 6 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2935.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2935/head:pull/2935

PR: https://git.openjdk.org/jdk17u-dev/pull/2935