[automerger skipped] Test that if an RA sets the same prefix as DNS, nothing happens. am: 3e54957fac -s ours

am skip reason: Change-Id I3316d49d42100800740afadc4edf0a13a4d8377c with SHA-1 2a0ef00bb9 is in history

Change-Id: I3e050057ba6ac95d789ed7f34f390bec586d84b7
tree: 6c93356e8743104da573db20c4c446c267e841c6
  1. core/
  2. services/
  3. tests/