Instrument wifi-service when EMMA_INSTRUMENT_FRAMEWORK is true.

Bug: 28269038
Change-Id: I0f66049eeb27de6c9f549fe307a5ab47691fc56e
diff --git a/service/Android.mk b/service/Android.mk
index 9f23666..2791d57 100644
--- a/service/Android.mk
+++ b/service/Android.mk
@@ -140,6 +140,10 @@
 LOCAL_MODULE := wifi-service
 LOCAL_PROTOC_OPTIMIZE_TYPE := nano
 
+ifeq ($(EMMA_INSTRUMENT_FRAMEWORK),true)
+LOCAL_EMMA_INSTRUMENT := true
+endif
+
 include $(BUILD_JAVA_LIBRARY)
 
 endif