V4L/DVB: m920x: Add support for Pinnacle PCTV310e card

Adds support to Pinnacle PCTV310e hybrid tuner card, for DVB-T and
remote control, still no analog video.

[mchehab@redhat.com: fix CodingStyle issues]

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>