Update CameraHAL

From Arcos Github. May change use of other 3rd party camera apps 
where the picture turns green and is saved that way. This is what
I experienced on 4.2 with this HAL. Which is what arco uses on 4.1.
*Also note that this change includes the new location for the overlay.*
Merge pull request #1 from doadin/patch-1

Update CameraHAL