Add ListenerView so that we can fast finish the FloatingIconView fade anim.

This change allows us to quickly end the animation if the user begins
interacting with launcher before the animation is over. This can currently
happen when the user swipes up to go home, and then quickly swipes up again
to enter overview.

Bug: 129421279
Change-Id: I88c7d55ef8ac09f999c082317de3bb3693c11466