Add a default dns entry if none is provided

Fixes part of emulator which isn't telling us about dns servers.
Gets some stuff running, but browser is still broken.

bug:2961703
Change-Id: I53b946eba434aca1bb524c2acaf77922377948d1
1 file changed
tree: f997d0c683841fe3c0644a1467020cd8784f2303
  1. core/
  2. services/