set_mode and set_phone_state now take audio_mode_t

Change-Id: I12a3a5ad6c3cadc6b9de8281f78edfef53908e2d
diff --git a/modules/audio/audio_hw.c b/modules/audio/audio_hw.c
index a482604..6465df9 100644
--- a/modules/audio/audio_hw.c
+++ b/modules/audio/audio_hw.c
@@ -278,7 +278,7 @@
     return -ENOSYS;
 }
 
-static int adev_set_mode(struct audio_hw_device *dev, int mode)
+static int adev_set_mode(struct audio_hw_device *dev, audio_mode_t mode)
 {
     return 0;
 }