Merge "[Thread] flagging Android Thread APIs" into main am: 9513988323

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2799715

Change-Id: I39888a461bbabf20282416bfa55a5d05d76b9e18
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>