Statusbar: Show wifi icon on wifi enabled

Currently wifi icon is shown on status bar only when device is connected
to an AP but not just when wifi is enabled.

Add support to show wifi icon on enable even with no wifi connection.

Change-Id: I23a8c99147236d75180b04cbada0f8f087235e1c

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkController.java
AppOps: Add Ops check for audio recording by AudioRecord API

Confirm user permission before audio recording by AudioRecord API

Change-Id: Ib534a2872d0743a8124b403a2f20465ceb467f64