Fix folder icon text alignment.

- We set the parent view padding to be cellYPadding, so we no longer need to
  account for it when setting the text LayoutParams.

Bug: 191954558
Test: grid where scalableGrid=true and scalableGrid=false (4x5, and 5x5)
Change-Id: I8d7578b2589f801ceef229b663446d868d135ad0
1 file changed