ALSA: pcsp: fix printk format warning

Fix printk format warning:

sound/drivers/pcsp/pcsp_mixer.c:54: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/drivers/pcsp/pcsp_mixer.c

@@ -50,7 +50,7 @@ static int pcsp_treble_info(struct snd_kcontrol *kcontrol,
 	uinfo->value.enumerated.items = chip->max_treble + 1;
 	if (uinfo->value.enumerated.item > chip->max_treble)
 		uinfo->value.enumerated.item = chip->max_treble;
-	sprintf(uinfo->value.enumerated.name, "%d",
+	sprintf(uinfo->value.enumerated.name, "%lu",
 			PCSP_CALC_RATE(uinfo->value.enumerated.item));
 	return 0;
 }