This change also removes the usage of "fillBoth" keyWidth from 7-inch
tablet layouts.
Bug: 6480505
Change-Id: I9ed58e0b49138fa9e1610c2b008798eedb19dd26
* Tweak key width and positon for arabic.
* Move delete and enter key down for farsi.
Bug: 6422448
Change-Id: I4fce1f4761eb1b53e432900c19e455a023721fc6