Enable dalvik.vm.lockprof.threshold on eng builds in addition to userdebug

Bug: 17572009
Change-Id: I0cfc1aa2dd93a8dac21d23d813801c74ed37079a
diff --git a/core/main.mk b/core/main.mk
index d719b38..1958a16 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -329,9 +329,6 @@
   ifeq ($(user_variant),userdebug)
     # Pick up some extra useful tools
     tags_to_install += debug
-
-    # Enable Dalvik lock contention logging for userdebug builds.
-    ADDITIONAL_BUILD_PROPERTIES += dalvik.vm.lockprof.threshold=500
   else
     # Disable debugging in plain user builds.
     enable_target_debugging :=
@@ -365,6 +362,8 @@
 ifeq (true,$(strip $(enable_target_debugging)))
   # Target is more debuggable and adbd is on by default
   ADDITIONAL_DEFAULT_PROPERTIES += ro.debuggable=1
+  # Enable Dalvik lock contention logging.
+  ADDITIONAL_BUILD_PROPERTIES += dalvik.vm.lockprof.threshold=500
   # Include the debugging/testing OTA keys in this build.
   INCLUDE_TEST_OTA_KEYS := true
 else # !enable_target_debugging