Add support for cropping and composition setup on the video capture
node through VIDIOC_S/G_SELECTION ioctls. S/G_CROP, CROPCAP ioctls
are still  supported for applications since the core will translate
them to *_selection handler calls.
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>