Added GrabBeeX+ USB2800 model (analog only)

[mchehab@infradead.org: Need to fix some merge conflicts]
Signed-off-by: Aron Szabo <aron@aron.ws>
Signed-off-by: Douglas Schilling Landgraf <dougsland@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>