V4L/DVB (10281): cx18: Conversion to new V4L2 framework: use v4l2_device object

First step in conversion to the new V4L2 framework.  Added per cx18 device
instance of the v4l2_device and its registration.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2 files changed