Merge "[MTE] Cleanup stack buffer for detached threads" into main am: b2b11f689b

Original change: https://android-review.googlesource.com/c/platform/bionic/+/3344504

Change-Id: I7cdbc7a755068a0c001d5b803761b3793a0a14e6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>