[2/2] Keyguard: Fix Pin-Layout on Galaxy Tab 2

Fix a long standing lockscreen layout problem that was introduced in 4.2
e.g. on P3100 and P5100

Before: http://i.imgur.com/NETsfBy.png
After: http://i.imgur.com/8ghV2aG.png

Change-Id: I1e7e9cd38b2dc2ac6d2b3253a6148e45bdeb4ca3