ALSA: Drop __bitwise and typedefs for snd_device attributes

Using __bitwise and typedefs for the attributes of snd_device struct
isn't so useful, and rather it worsens the readability.  Let's drop
them and use the straightforward enum.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/aoa/aoa.h b/sound/aoa/aoa.h
index e087894..34c668f 100644
--- a/sound/aoa/aoa.h
+++ b/sound/aoa/aoa.h
@@ -116,7 +116,7 @@
 	struct snd_card *alsa_card;
 };
         
-extern int aoa_snd_device_new(snd_device_type_t type,
+extern int aoa_snd_device_new(enum snd_device_type type,
 	void * device_data, struct snd_device_ops * ops);
 extern struct snd_card *aoa_get_card(void);
 extern int aoa_snd_ctl_add(struct snd_kcontrol* control);