Changes in circle battery implementation to fit HALO

Change-Id: Ib8848537586511c509655776f74ea452f7b7e1ac

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/policy/BatteryController.java
Halo: selectively add boost hints

boost only at the start of moving the halo for both reversed and regular
interactions.  Also boost for launching tasks.

-VanirAOSP

Change-Id: I910fa0b13205f80c84894f252ed3668f887d4fed

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/halo/Halo.java

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/halo/Halo.java