smdk4412-common: camera: reorganize camera parameters

Few Scene modes require Flash and few don't. However all of
the scene modes require the focus to be AUTO. Reorganize the
camera parameters to set the Flash and Focus modes based on
the scene mode.

Changes adapted from Exynos5 Camera HAL.

Change-Id: If3ab62a1d8aecf84d2a04d1e899f71d4315a66ea