Revert "Revert "sound trigger: added permission checks""

This reverts commit 936c84a5b743dce2a2572fdf54b37b187bc88b60.

Bug: 16374803.
Change-Id: I9d3137faeddf119b13f9cdb73c14ca49e1ee3d1c
diff --git a/services/soundtrigger/Android.mk b/services/soundtrigger/Android.mk
index b7ccaab..51eb845 100644
--- a/services/soundtrigger/Android.mk
+++ b/services/soundtrigger/Android.mk
@@ -33,8 +33,11 @@
     libhardware \
     libsoundtrigger
 
-#LOCAL_C_INCLUDES += \
+LOCAL_STATIC_LIBRARIES := \
+    libserviceutility
 
+LOCAL_C_INCLUDES += \
+    $(TOPDIR)frameworks/av/services/audioflinger
 
 LOCAL_MODULE:= libsoundtriggerservice