[mythtvnz] Updated DVB drivers for ubuntu

[Nick Rout]

Picked up from the main mythtv-user list, and may be relevant
particularly to people trying to get DVB-T cards going, someone is
building and packaging the v4l-dvb development snapshot fpr ubuntu:

http://martinpitt.wordpress.com/2008/06/10/packaged-dvb-t-drivers-for-ubuntu-804/

Just to be clear, despite the name of the blog entry, its the whole
v4l-dvb tree so includes DVB-T, -S & -C as well as ATSC.