media: uvcvideo: Introduce allow_privacy_override module parameter

media: uvcvideo: Introduce allow_privacy_override module parameter

Some camera modules have XU controls that can configure the behaviour of
the privacy LED.

Block mapping of those controls, unless the module is configured with
a new parameter: allow_privacy_override.

Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
[johannes.goede@oss.qualcomm.com: Remove deprecation warning from param]
Reviewed-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
Signed-off-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>