restore emma changes overwrittern by I9174f843

Change-Id: Ic5199ddfdaa2f8366bda960be84464945726e2f5
diff --git a/core/main.mk b/core/main.mk
index 9d1ad85..1545670 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -689,6 +689,10 @@
 	$(INSTALLED_USERDATAIMAGE_TARGET) \
 	$(INSTALLED_FILES_FILE)
 
+ifeq ($(EMMA_INSTRUMENT),true)
+  $(call dist-for-goals, droid, $(EMMA_META_ZIP))
+endif
+
 ifneq ($(TARGET_BUILD_APPS),)
   # If this build is just for apps, only build apps and not the full system by default.