Wi-Fi : Abort setWifiEnabled if WifiController not ready

While executing setWifiEnabled, it send commands to WifiController.
If WifiController is not started by this time, StateMachine reports
crash which creates device reboot.
Thus, check if WiFiController is started before invoking any
command to the same. Indicate a failure in such an instance

CRs-Fixed: 742857
Change-Id: Ic40eb82522b67f7e606d4739c41da3b8ba2f3590
1 file changed
tree: 2db1d6d3ac37e09dc2340ee6ffb152b9295c3fce
  1. service/
  2. tests/