[ALSA] ad1848/cs4231: replace commented out debug code with snd-printd{,d}

While I'm at it another 'while I'm there' -- replace commented out debug
code with snd-printd{,d}.

Signed-off-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>