hwui: Disable partial invalidations

Simple 4210 implementation of this 4412 commit:
http://review.cyanogenmod.org/#/c/49311/

Change-Id: Ic0ced4e8ce5522b2dc1bda2ecf56d53c83f86fd2
camera: Implement proper touch-focus behavior

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>

Conflicts:
	camera/exynos_camera.c

Change-Id: I46823c0b2a1668f03d952f35fe55ced9c31a2822