ALSA: firewire-lib: rename macros with AM824 prefix

This commit renames some macros just related to AM824 format. In later
commit, they're moved to AM824 layer.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/firewire/oxfw/oxfw-stream.c

@@ -483,8 +483,8 @@ int snd_oxfw_stream_parse_format(u8 *format,
 		}
 	}
 
-	if (formation->pcm  > AMDTP_MAX_CHANNELS_FOR_PCM ||
-	    formation->midi > AMDTP_MAX_CHANNELS_FOR_MIDI)
+	if (formation->pcm  > AM824_MAX_CHANNELS_FOR_PCM ||
+	    formation->midi > AM824_MAX_CHANNELS_FOR_MIDI)
 		return -ENOSYS;
 
 	return 0;