media: uvcvideo: Announce the user our deprecation intentions

If the user sets the nodrop parameter, print a deprecation warning once.
Hopefully they will come to the mailing list if it is an ABI change.

Now that we have a callback, take this chance to parse the parameter as
a boolean. We still say to userspace that it is a uint to avoid ABI
changes.

Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241218-uvc-deprecate-v2-4-ab814139e983@chromium.org


Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>