SysUI: Fix QS tiles cutting off in the ribbon

Change I6dbe2d165398a8142e024db827208dc778003431 introduced a bug
where some Tiles would be cropped when certain themes are applied.

This patch resolves that issue.  Also moved the new dimensions to
cm_dimens.xml instead of dimens.xml.

Change-Id: I64e45e83c0edb7101dfd05377376e57ec323cdc1