Merge "[Thread] initial Thread network service" into main am: 01e6dadd1f am: f8d0c8e128

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2721333

Change-Id: I9389a6e9d37381089dadcf48fe2f05d68e0f40bc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>