media: v4l: fwnode: The clock lane is the first lane in lane_polarities

The clock lane is the first lane in the lane_polarities array. Reflect this
consistently by putting the number of data lanes after the number of clock
lanes.

Fixes: 4ee23621 ("media: v4l2-fwnode: suppress a warning at OF parsing logic")

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>