[jdk17u-dev] RFR: 8276175: codestrings.validate_vm gtest still broken on ppc64 after JDK-8276046 [v2]

[Goetz Lindenmaier]

> I backport this as follow up of [JDK-8264207](https://bugs.openjdk.org/browse/JDK-8264207).

Goetz Lindenmaier has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:

 - Merge branch 'openjdk:master' into goetz_backport_8276175
 - backport b889f2a88a5e182d2424b741d8fedf2c784442f1
 - Backport 809488bf38c250db3c263f200e5eb1a269059c3d

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

Changes:
  - all: https://git.openjdk.org/jdk17u-dev/pull/3753/files
  - new: https://git.openjdk.org/jdk17u-dev/pull/3753/files/3f03161f..53b5af82

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3753&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3753&range=00-01

  Stats: 311 lines in 19 files changed: 224 ins; 22 del; 65 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/3753.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/3753/head:pull/3753

PR: https://git.openjdk.org/jdk17u-dev/pull/3753