media: v4l: fwnode: Print bus type

Print bus type either as set by the driver or as parsed from the bus-type
property, as well as the guessed V4L2 media bus type.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Tested-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>