[jdk17u-dev] RFR: 8271890: mark hotspot runtime/Dictionary tests which ignore external VM flags

[Goetz Lindenmaier]

I backport this for parity with 17.0.10-oracle.

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

Commit messages:
 - Backport cdf3d55c82844a3c8817f8cc33e85ca15a5ad930

Changes: https://git.openjdk.org/jdk17u-dev/pull/1763/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1763&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8271890
  Stats: 2 lines in 2 files changed: 2 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1763.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1763/head:pull/1763

PR: https://git.openjdk.org/jdk17u-dev/pull/1763