Update the NetworkAgent API for council comments

Bug: 152238712
Test: FrameworksNetTests NetworkStackTests
Copy from ag/10824609
Change-Id: I9a2691f783f4449348c3f767568e05620f0b9df5
Merged-In: I9a2691f783f4449348c3f767568e05620f0b9df5
5 files changed