camera: enable focus modes

Change-Id: I33449955cd89334a4459cc067f7697db8adb22bc
camera: fix flashlight for video recording

Change-Id: Ifa723993b6da14895d90b39282e3733e2502d96f
camera: fix iso

Change-Id: I323e991e25d6a1338a4baf59d1f9c950942cd9c0
camera: set contrast and saturation

and leave default limits for exposure compensation

Change-Id: I5444b01bf2dc38d53e9197c3b061b1ecd03a99cd
graphics: force gpu rendering

Change-Id: Id478e7e5f76d3d93b60d5020d1ce603d72395863
Revert "Disable am2server"

This reverts commit 548b552aeb36c63e92575774625d768bd9e76aed.
camera: fix invalid parameter bug

We only can set a parameter to a specific value if this value is
available. When the front camera is used, only "normal" contrast can be
set.

Change-Id: I0fa78f3762f581c3a07ef8680428708e7b4174a9
fingerprint support