Use AutoTransition for add/remove alarm animation
Use AutoTransition for add/remove alarm animation

Bug: 13785230

The current add/remove animation doesn't prevent rebinding while it's
running which can lead to improper invalidation / render states. Switch
to using the transition framework since it handles the transient state
automatically.

Change-Id: I4e38d27d91e7a331a5edc97285cb8afc4efba61e

OrBin/SynClock-Android