[jdk17u-dev] RFR: 8275287: Relax memory ordering constraints on updating instance class and array class counters

[Aleksey Shipilev]

Clean backport to improve CLD statistics gathering.

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Commit messages:
 - Backport 002c538bc03f55fa600f331a66242ee8575919dc

Changes: https://git.openjdk.org/jdk17u-dev/pull/1382/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1382&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8275287
  Stats: 10 lines in 1 file changed: 1 ins; 0 del; 9 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1382.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1382/head:pull/1382

PR: https://git.openjdk.org/jdk17u-dev/pull/1382