Merge "[Thread] add Thread tests to mts-tethering" into main am: 6c728aa1fa am: 4ff05606d4

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

Change-Id: Ie80bdbd348b1b3b7cb84fd9b8a7d3ea5458c3700
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>