update auto-generated makefiles

b/31524912
Test: pass

Change-Id: Iafea8f87e93181041f42820df39ec43b3c785410
Signed-off-by: Iliyan Malchev <malchev@google.com>
diff --git a/tests/expression/1.0/Android.mk b/tests/expression/1.0/Android.mk
index e35a104..08713a7 100644
--- a/tests/expression/1.0/Android.mk
+++ b/tests/expression/1.0/Android.mk
@@ -62,3 +62,6 @@
 	$(transform-generated-source)
 LOCAL_GENERATED_SOURCES += $(GEN)
 include $(BUILD_JAVA_LIBRARY)
+
+
+include $(call all-makefiles-under,$(LOCAL_PATH))