media: ipu3-cio2: Use cio2_queues_exit

The ipu3-cio2 driver has a function to tear down video devices as well as
the associated video buffer queues. Use it.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Bingbu Cao <bingbu.cao@intel.com>
Reviewed-by: Bingbu Cao <bingbu.cao@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>