[automerger skipped] Merge "Add IPv6TetheringCoordinator unit test" into rvc-dev am: 8caf921dc8 am: 21b7d260cb am: d6e02a62d6 am: 2e394fd361 -s ours am: bfab169772 -s ours

am skip reason: Change-Id I939323ce09adb9c66b1e2b83d58b0f892aa8f011 with SHA-1 1b39a10c21 is in history

Change-Id: I279253b96d601dc4be61904ccd5b1868f676b249
tree: a3eee5f73633c6f65e147b28155789b4b133c72e
  1. Tethering/