Frameworks: Fix 0% battery QS tile

when tile is recreated. Fetch the values from
BatteryController

Change-Id: Id0539016e1c479ac1f75535647d91a26f69a76b5
Signed-off-by: scott <scott@ubuntu>

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/policy/BatteryController.java