Merge "[Thread] make the Manager and Controller class 'final'" into main am: 077e444720 am: 924cc1cfbc

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2793232

Change-Id: If130b08ca2d02f47752ead1fa053b5d15b946a47
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>