s3ve3g: Add missing camera code

There are needed drivers for camera used on s3ve3g but there is no way
to compile them.
Add missing configs for 2 cameras : Front ( S5K6A3YX ) and back (
S5K4H5YB )
Enabling this on s3ve3g should fix both cameras.

Signed-off-by: Robert Rozic <r.rozic97@gmail.com>