smdk4412: add focal overlay

Change-Id: I9e2753ae335460615e024a8b21d2aa2053f90d00
hwui: Disable partial invalidations

The property to disable usage of dirty regions has changed, adjust
to the current one to fully disable them.

Change-Id: Iabe4d57a4f6ccd99ae7cae798c7dce76a02580cd
Merge pull request #1 from CyanogenMod/cm-10.2

Merge CM10.2 from Cyanogenmod