WifiServiceImpl: setWifiApEnabled unit tests

Add unit tests to cover setWifiApEnabled.  This did require a small
change to check a tethering permission and add the user manager.

Bug: 37294233
Test: frameworks/opt/net/wifi/tests/wifitests/runtests.sh
Change-Id: I7bdfdcbdfa60605bc2e61f18aa8abeb4bcaf5c56
Merged-In: I77413789b1b2a19c9330f4c9b9978c4a0f5b5bf8
Merged-In: I33ae84d7282dea967a53a644018e20eb2902eca3
4 files changed
tree: 03782ebb8d4df372795107914495d1e8e7cabb63
  1. service/
  2. PREUPLOAD.cfg