Update comments and documentation in net type prop change

Bug: b/112588045
Test: atest EthernetServiceTests --verbose
Test: kitchensink, dumpsys ethernet, with RPi devices and USB to
      ethernet adapters.

Change-Id: Iaa260aabbbd7aa4b7864eba32ecff7e3f84123c3
3 files changed
tree: aa56600ba57b2309164725331f8028cb2ecbacfa
  1. service-t/
  2. tests/