[jdk21u-dev] RFR: 8339300: CollectorPolicy.young_scaled_initial_ergo_vm gtest fails on ppc64 based platforms

[Goetz Lindenmaier]

Follow-up to 8258483 to fix PPC.

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

Depends on: https://git.openjdk.org/jdk21u-dev/pull/1592

Commit messages:
 - Backport f2c992c5af021ab0ff8429fd261314bc7e01f7df

Changes: https://git.openjdk.org/jdk21u-dev/pull/1593/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1593&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8339300
  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1593.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1593/head:pull/1593

PR: https://git.openjdk.org/jdk21u-dev/pull/1593