smdk4412-common: camera: fix scene mode snapshot capture crashes

Few Scene Modes (like Night, High Sensitivity) if set as default,
after the camera opens, require the scene mode to be set when the
stream is turned on inorder to properly take effect. Not doing so
will result in crashes while trying to capture the snapshot.

Change-Id: I9e6b67c59699495da6922ac737232f58d98c2b40

Patchset: 1
http://review.cyanogenmod.org/#/c/54632/