Add Fast Charge QS Tile [1/2]

Change-Id: I9e28bb14549c176cacfe2a861b1e5f56cd9e242f

Conflicts:
	core/java/com/android/internal/util/slim/DeviceUtils.java
	core/java/com/android/internal/util/slim/QSConstants.java
	core/res/res/values/config.xml
	packages/SystemUI/res/values/custom_strings.xml
	packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickSettingsController.java

Conflicts:
	packages/SystemUI/res/values/slim_strings.xml
	packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickSettingsController.java