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: Icd14fbe9aff1755d47ff9a40b28db09536cd0300
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>