UI not updated correctly in expanded statusbar

Sometimes when getting status changes in expanded statusbar the
text disappear. Both NetworkController and PhoneStatusBar handles
UI updates and they are not in sync. This fix allows PhoneStatusBar
to update UI when NetworkController is updating the UI.

Change-Id: I46b8a24ecc732e441f836692c6584a78d8108dff

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
Revert "Prevent nullPointerException by updateBondedBluetoothDevices"

This reverts commit ed18f0332749e55fbda69fead54ca9d7cb7f57cd.