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

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

Change-Id: I5e357f2e0446b6ad088fb9ac2835094fdbb34c15
tree: 394ac0348cc87b2a4ea310ab06a47387e3a268d7
  1. Tethering/