V4L/DVB: cx18-alsa: Initial non-working cx18-alsa files

Initial cx18-alsa module files check-in to avoid losing work.

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

diff --cc drivers/media/video/cx18/cx18-alsa-mixer.c
Simple merge

diff --cc drivers/media/video/cx18/cx18-alsa-mixer.h
Simple merge

diff --cc drivers/media/video/cx18/cx18-alsa.c
Simple merge

diff --cc drivers/media/video/cx18/cx18-alsa.h
Simple merge

diff --cc drivers/media/video/cx18/cx18-driver.h
Simple merge