Merge "[Thread] add ThreadNetworkIntegrationTests to mts-tethering" into main am: e2021fde0c

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2928053

Change-Id: I6c1a7cb424eb363c8e1de09ede95d77bf93c7343
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>