Merge "[Thread] add Thread tests to mts-tethering" into main am: 6c728aa1fa

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2927252

Change-Id: Id2ae051e1a86ba599d6e3ea3a7fc79e4953f5cb3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>