[media] v4l: of: Use of_get_child_by_name()
[media] v4l: of: Use of_get_child_by_name()

Replace a manual loop through child nodes with a call to
of_get_child_by_name().

Signed-off-by: Laurent Pinchart <3ded2f39a78f0d7044839546f95841842b4d7c96@ideasonboard.com>
Acked-by: Sylwester Nawrocki <1ca386fdc5066df13f7236f0837f22126191d06b@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <0cae1d1e981e84d16b82ca3d17be8a7f826608d3@samsung.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs