V4L/DVB (11134): cx231xx: dmesg cleanup

Remove some printk's that were needed only during development phase. Also,
cleans the printed messages to produce a nicer result.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --cc drivers/media/video/cx231xx/cx231xx-audio.c
Simple merge

diff --cc drivers/media/video/cx231xx/cx231xx-cards.c
Simple merge

diff --cc drivers/media/video/cx231xx/cx231xx-core.c
Simple merge

diff --cc drivers/media/video/cx231xx/cx231xx-i2c.c
Simple merge

diff --cc drivers/media/video/cx231xx/cx231xx-video.c
Simple merge