Add set untrusted API for networkSuggestion

Bug: 147766061
Test: atest com.android.server.wifi
Change-Id: I23cbd827883b70874871c300928975b2901e00be
14 files changed
tree: 1ca13c979e3bc39917c85f19e3e5e5d06a4e7229
  1. apex/
  2. service/
  3. PREUPLOAD.cfg