[ALSA] sound/hda: fix help text

Fix hda help text typo.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

sound/pci/Kconfig

@@ -506,7 +506,7 @@ config SND_HDA_HWDEP
 	select SND_HWDEP
 	help
 	  Say Y here to build a hwdep interface for HD-audio driver.
-	  This interface can be used for out-of-bound communication
+	  This interface can be used for out-of-band communication
 	  with codecs for debugging purposes.
 
 config SND_HDA_CODEC_REALTEK