ASoC: DaVinci I2S needs mach/asp.h

Reported-by: Troy Kisky <troy.kisky@boundarydevices.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/davinci/davinci-i2s.c b/sound/soc/davinci/davinci-i2s.c
index 7c48399..f7330e1 100644
--- a/sound/soc/davinci/davinci-i2s.c
+++ b/sound/soc/davinci/davinci-i2s.c
@@ -22,6 +22,8 @@
 #include <sound/initval.h>
 #include <sound/soc.h>
 
+#include <mach/asp.h>
+
 #include "davinci-pcm.h"