Merge "Move DnsPacket to libs net" into rvc-dev am: 81f0fe48d2 am: 5409cf46b5

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11862407

Change-Id: I3f1edfe442f3408a19c9a901fb35bde8ef22950b
tree: fc8bed55fcdf53b5b1ecd615d1d772502d9d5df4
  1. core/
  2. services/
  3. tests/