Add ATSC/QAM support for the Avermedia m780.  Note that this patch does
not include any analog support for the board, as the ngene bridge driver does
not yet have analog implemented
Signed-off-by: NDevin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>