NavRing: Longpress Logic

Again, this matches shortpress logic.
    (And now matches longpress logic
    since this was merged on Lockscreen)

Vibrates on Longpress...
    Remove finger to launch.

Change-Id: Ia7f8bb2580643930511fd12764f4a41873ef64d2

Conflicts:
	packages/SystemUI/src/com/android/systemui/SearchPanelView.java