Eth Service updates to validate net mgmt calls

Updates to ethernet service code to validate calls to ethernet network
management APIs.

Bug: 210485380
Test: atest EthernetServiceTests
Change-Id: I66b91c6d12e6859de33760ab21bb00f1477720e8
2 files changed
tree: fb35f075e0a4327bd2b240444b3fa179c9312d42
  1. service-t/
  2. tests/