V4L/DVB (9169): uvcvideo: Support two new Bison Electronics webcams.

This adds required quirks for the Compaq Presario B1200 and Acer Travelmate
7720 integrated webcams.

Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>