Update NetworkAgentConfig API for council comments

Bug: 152238712
Test: FrameworksNetTests NetworkStackTests
Copy from ag/10826396
Change-Id: Idca9f243a5c955f4caa30921ee520e1a93b0d11a
Merged-In: Idca9f243a5c955f4caa30921ee520e1a93b0d11a
3 files changed