Frameworks: SlimPIE optimize optimize optimize

- stop listening on TelephonyManager if pie is disabled
- reuse already constructed SnapPoints
- pass trough mPieTriggerMask and mPieTriggerSlots
- a bit code cleanup

cheers

Change-Id: Ieef66e8cd7abe89cd419f2f368ef06f09d4e40b4

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
	packages/SystemUI/src/com/android/systemui/statusbar/pie/PieLayout.java
	packages/SystemUI/src/com/android/systemui/statusbar/policy/PieController.java