Add setEthernetEnabled and its listener API

Bug: 171872016
Test: atest EthernetServiceTests

Merged-In: Iefd24d955572589c5bd3ca9a8139ea6e44979e8a
Change-Id: Iefd24d955572589c5bd3ca9a8139ea6e44979e8a
3 files changed
tree: e88e65ef11b151849b4a2a768cd9008bd6fcc963
  1. framework/
  2. framework-t/
  3. service-t/
  4. tests/