WifiServiceImpl: Allow setWifiEnabled for system apps

This allows system apps to toggle wifi on/off during emergency calls to get
user's location for example.

Bug: 138091278
Test: atest com.android.server.wifi
Change-Id: I095f9755c60034064e467dedcdb16b33dc63d9eb
Merged-In: I095f9755c60034064e467dedcdb16b33dc63d9eb

(cherry-picked from bc68567d3b914d781c87f63a01b3b67f5803f45b)
(cherry picked from commit 1b7ee011fff4731eedb1633a411af43f2d6946ee)

Change-Id: I57f11cb4545e6d6845504171ab37b737f0d1ec29
2 files changed
tree: 1dfcbaf04905bb4cd11e62d3fd7693f728da1622
  1. service/
  2. PREUPLOAD.cfg