Eleven: fix default image not showing up in queue fragment

SquareImageView and the LetterTileDrawable doesn't work well together
Since this image has fixed dimensions we don't need SquareImageView anyways

Change-Id: I8dcac7b3170af227f39d6d6333ff7d0497592bf9
Merge "Eleven: fix default image not showing up in queue fragment" into cm-12.0