Merge "Improve RouterAdvertisementDaemonTest." am: 662237f2f8

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1669025

Change-Id: I9e9bb95e095fa1b8d907d56cc0e347746ae9a01c
tree: ee6637205b163b7ac7efab99022bb5592d111b95
  1. tests/
  2. Tethering/
  3. .gitignore
  4. OWNERS
  5. PREUPLOAD.cfg
  6. TEST_MAPPING