V4L/DVB (7473): PATCH for various Dibcom based devices

This patch introduces support for dvb-t for the following DiBcom based cards:

- Terratec Cinergy HT USB XE (USB-ID: 0ccd:0058)
- Terratec Cinergy HT Express (USB-ID: 0ccd:0060)
- Pinnacle 320CX (USB-ID: 2304:022e)
- Pinnacle PCTV72e (USB-ID: 2304:0236)
- Pinnacle PCTV73e (USB-ID: 2304:0237)
- Yuan EC372S (USB-ID: 1164:1edc)

Signed-off-by: Hans-Frieder Vogt <hfvogt@gmx.net>
Signed-off-by: Felix Apitzsch <F.Apitzsch@soz.uni-frankfurt.de>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Albert Comerma <albert.comerma@gmail.com>
Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>