drm/udl: Add reset_resume

Implement the reset_resume callback of struct usb_driver. Set the
standard channel when called.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220908095115.23396-3-tiwai@suse.de