camera: re-send scene mode after stream on, only in picture mode

Change-Id: Ic3cdb288b5e982ad9e44607b93fbb34cdcd5aa4c
camera: forward setup of fimc3 in movie mode to exynos_camera_capture_start()

Change-Id: I5a94b4542f6daf09b10f2475e2c3aaeca12e3ee2