Build logtags for services

Change-Id: I6a146ae46df1a9d215fcf5bab7a2ef1876b94a1e
diff --git a/services/Android.mk b/services/Android.mk
index 5260540..165f456 100644
--- a/services/Android.mk
+++ b/services/Android.mk
@@ -8,6 +8,10 @@
 
 LOCAL_SRC_FILES := $(call all-java-files-under,java)
 
+# EventLogTags files.
+LOCAL_SRC_FILES += \
+        core/java/com/android/server/EventLogTags.logtags
+
 # Uncomment to enable output of certain warnings (deprecated, unchecked)
 # LOCAL_JAVACFLAGS := -Xlint