Update dummy snd_power_wait() function for new calling convention

Apparently nobody had tried to compile the ALSA CVS tree without power
management enabled.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/sound/core.h

@@ -176,7 +176,7 @@ int snd_power_wait(struct snd_card *card, unsigned int power_state);
 
 #define snd_power_lock(card)		do { (void)(card); } while (0)
 #define snd_power_unlock(card)		do { (void)(card); } while (0)
-static inline int snd_power_wait(struct snd_card *card, unsigned int state, struct file *file) { return 0; }
+static inline int snd_power_wait(struct snd_card *card, unsigned int state) { return 0; }
 #define snd_power_get_state(card)	SNDRV_CTL_POWER_D0
 #define snd_power_change_state(card, state)	do { (void)(card); } while (0)