ALSA: ac97 - Remove EXPERIMENTAL from CONFIG_SND_AC97_POWER_SAVE

It's mature enough now.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/drivers/Kconfig b/sound/drivers/Kconfig
index 255fd18..0bcf146 100644
--- a/sound/drivers/Kconfig
+++ b/sound/drivers/Kconfig
@@ -163,7 +163,7 @@
 
 config SND_AC97_POWER_SAVE
 	bool "AC97 Power-Saving Mode"
-	depends on SND_AC97_CODEC && EXPERIMENTAL
+	depends on SND_AC97_CODEC
 	default n
 	help
 	  Say Y here to enable the aggressive power-saving support of