Merge "Revert "[Thread] post broacast receivers on the handler thread"" into main am: 4866872a4d

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3163207

Change-Id: Iad92542aa5ae6aa272757c47139ea2b41f6149ff
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>