[jdk21u-dev] RFR: 8370325: G1: Disallow GC for TLAB allocation

[Goetz Lindenmaier]

I backport this for parity with 21.0.11-oracle.

Based on change in 25.

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Commit messages:
 - Backport 53e7ea891d8c3d91340bf1967aa94104f54b467c

Changes: https://git.openjdk.org/jdk21u-dev/pull/2514/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2514&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8370325
  Stats: 29 lines in 2 files changed: 9 ins; 5 del; 15 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2514.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2514/head:pull/2514

PR: https://git.openjdk.org/jdk21u-dev/pull/2514