[media] Support Digivox Mini HD (rtl2832)

Add support for Digivox Mini HD (rtl2832)
The tuner works, but with worst performance then realtek linux driver,
due to incomplete implementation of fc2580.c

Signed-off-by: Eddi De Pieri <eddi@depieri.net>
Tested-by: Lorenzo Dongarrà <lorenzo_64@katamail.com>
Acked-by: Antti Palosaari <crope@iki.fi>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>