Add Ethernet, TestNetworkSpecifier API am: 7f11b46a43

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1574300

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I1a1b38fb6b8b6831bac016a8352ae9073758f9af
tree: 8a79de5842cd747fc90e53a42700744287c0f7ab
  1. core/
  2. framework/
  3. service/
  4. services/
  5. tests/
  6. OWNERS