V4L/DVB (4835): Added support for the Terratec Cinergy HT PCMCIA module

This is a hybrid cardbus module. Besides the card support, i 
modified the definition names for AGC and GPIO of the tda10046.

Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>