Merge "[Thread] add CtsThreadNetworkTestCases to mcts-tethering" into main am: 62046e57

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2979032



Change-Id: Iab5c83e0c74b578270284ad6b51e3ce3b7defb90
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>