Uses AudioFlinger to signal battery stats for audio.

Bug: 18177221
Change-Id: I704010c037cb99bb74b98798ee8e494fa8bdc875
diff --git a/services/audioflinger/Android.mk b/services/audioflinger/Android.mk
index 9b4ba79..87f9aaa 100644
--- a/services/audioflinger/Android.mk
+++ b/services/audioflinger/Android.mk
@@ -47,6 +47,7 @@
     liblog \
     libbinder \
     libmedia \
+    libmediautils \
     libnbaio \
     libhardware \
     libhardware_legacy \