Update build dependency on AudioMixer header

VideoEditorSRC doesn't need to include AudioMixer.h.

VideoEditorResampler includes AudioMixer.h, which requires
 system/media/audio_effects/include in the include path.

Change-Id: Ibf6194831aeb91e788ce0a3b1282a0d930ee6e48
diff --git a/libvideoeditor/lvpp/VideoEditorSRC.cpp b/libvideoeditor/lvpp/VideoEditorSRC.cpp
index f8578b2..4753dd4 100755
--- a/libvideoeditor/lvpp/VideoEditorSRC.cpp
+++ b/libvideoeditor/lvpp/VideoEditorSRC.cpp
@@ -24,7 +24,6 @@
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/MediaBuffer.h>
 #include <media/stagefright/MediaDefs.h>
-#include "AudioMixer.h"
 #include "VideoEditorSRC.h"
 
 
diff --git a/libvideoeditor/vss/src/Android.mk b/libvideoeditor/vss/src/Android.mk
index 14f8f80..e9c265b 100755
--- a/libvideoeditor/vss/src/Android.mk
+++ b/libvideoeditor/vss/src/Android.mk
@@ -63,6 +63,7 @@
 
 LOCAL_C_INCLUDES += \
     $(TOP)/system/media/audio_utils/include \
+    $(TOP)/system/media/audio_effects/include \
     $(TOP)/frameworks/base/include \
     $(TOP)/frameworks/media/libvideoeditor/osal/inc \
     $(TOP)/frameworks/media/libvideoeditor/vss/inc \