ALSA: 6fire: Use standard printk helpers

Convert with dev_err() and co from snd_printk(), etc.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --cc sound/usb/6fire/chip.c
Simple merge

diff --cc sound/usb/6fire/comm.c
Simple merge

diff --cc sound/usb/6fire/control.c
Simple merge

diff --cc sound/usb/6fire/firmware.c
Simple merge

diff --cc sound/usb/6fire/midi.c
Simple merge

diff --cc sound/usb/6fire/pcm.c
Simple merge