ALSA: bebob: Improve comments about stream format

Currently bebob driver apply Raw Audio Data channel (in IEC 61883-1:2002,
Multi Bit Linear Audio Data channel in IEC 61883-6:20005) to IEC 60958
Conformant Data channel because both fireworks and bebob based devices
can handle it by ignoring each label.

This patch improves a comment about this.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/firewire/bebob/bebob_stream.c

@@ -760,7 +760,7 @@ parse_stream_formation(u8 *buf, unsigned int len,
 		format = buf[6 + e * 2];
 
 		switch (format) {
-		/* IEC 60958-3, currently handle as MBLA */
+		/* IEC 60958 Conformant, currently handled as MBLA */
 		case 0x00:
 		/* Multi bit linear audio */
 		case 0x06:	/* Raw */