Support animatable icons to quick affordances.

This CL adds support for animatable icons for quick affordances. It
starts by supporting them in the flashlight affordance.

Fix: 259295242
Test: manually tested the flashlight affordance. Made sure that toggling
it on and off properly animates the icon and that turning the display
off and on again does not animate the icon again.

Change-Id: I4e6d261fba0431e72c3df5904510ae89469e0177