soc_mbus_get_fmtdesc() returning NULL means only, that no standard
mediabus code -> fourcc conversion is known, this shouldn't be treated
as an error by drivers.
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>