SystemUI: Battery View Fixes

Fix inconsistent battery tile showing
	if battery is disabled in statusbar

PS2: Immediate update on inflate

Change-Id: I84618fb585eb700409932177041fa8ca3cadf92a
Framework: Allow All Widgets On Keyguard (1/2)

Change-Id: I2f25d403740a9ee8822c684436bc28283c356f6c