[media] uvcvideo: quirk PROBE_DEF for Alienware X51 OmniVision webcam

BugLink: http://bugs.launchpad.net/bugs/1180409


OminiVision webcam 0x05a9:0x2643 needs the same UVC_QUIRK_PROBE_DEF
as other OmniVision models to work properly.

Signed-off-by: Joseph Salisbury <joseph.salisbury@canonical.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>