Set callback for the color background in the tile

When the background of the tile changes from no ripple
(colorBackgroundDrawable) to ripple (mRipple), it sets the callback in
colorBackgroundDrawable to null. Need to make sure it's set back to the
RippleDrawable.

Test: manual
Fixes: 183888161
Change-Id: I7282296ca54e6f7d6ee5bec8dfbb5f6b0d1e12b0
1 file changed