media: v4l2-async: Use endpoints in __v4l2_async_nf_add_fwnode_remote()

media: v4l2-async: Use endpoints in __v4l2_async_nf_add_fwnode_remote()

Matching on device fwnode handles is deprecated in favour of endpoint
fwnode handles. Switch the __v4l2_async_nf_add_fwnode_remote() function
to use the latter. The match code handles backward compatibility by
falling by to the device fwnode handle, so this shouldn't introduce any
regression.

Signed-off-by: Laurent Pinchart <[email protected]>
Signed-off-by: Sakari Ailus <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>