V4L/DVB (4766): Add working dib7000m-module

First working version of the dib7000m-driver. 
This commit also makes the Hauppauge NOVA-T Stick working.

Signed-off-by: Francois Kanounnikoff <fkanounnikoff@dibcom.fr>
Signed-off-by: Patrick Boettcher <pboettcher@dibcom.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>