[media] m5mols: Use proper sensor mode for the controls

The parameters corresponding to the V4L controls can be reconfigured
only in associated M-5MOLS operation mode. Use struct v4l2_ctrl
priv field to assign the working mode to the controls which can be
modified only in certain conditions.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --cc drivers/media/video/m5mols/m5mols.h
Simple merge

diff --cc drivers/media/video/m5mols/m5mols_controls.c
Simple merge