Adding test coverage for eth transport overrides

Added test coverage regarding how EthernetTracker consumes the xml
config as set in config_ethernet_interfaces. Additionally, adding
test coverage for transport override functionality in
EthernetNetworkFactory.

Bug: 206170402
Test: atest com.android.server.ethernet.EthernetTrackerTest
&& atest com.android.server.ethernet.EthernetNetworkFactoryTest

Change-Id: I3d55a230d3f28154ed6fdac6d63ed57bf589d3bd
3 files changed
tree: 8ec1b571d0e18f7a08194d369bc601b3cbb43f13
  1. service-t/
  2. tests/