ALSA: ice1712: Use bitrev8

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/Kconfig b/sound/pci/Kconfig
index 75c602b..351654c 100644
--- a/sound/pci/Kconfig
+++ b/sound/pci/Kconfig
@@ -570,6 +570,7 @@
 	tristate "ICEnsemble ICE1712 (Envy24)"
 	select SND_MPU401_UART
 	select SND_AC97_CODEC
+	select BITREVERSE
 	help
 	  Say Y here to include support for soundcards based on the
 	  ICE1712 (Envy24) chip.