Adopt robolectric 3.5.1

Bug: 70689021
Test: make RunCarSettingsRoboTests
Change-Id: I6ccfc4b13fadb9c889a994b8f72662df9bb6a5aa
diff --git a/Android.mk b/Android.mk
index 79a4f69..2209eed 100644
--- a/Android.mk
+++ b/Android.mk
@@ -65,7 +65,7 @@
 
 # Use the following include to make our test apk.
 ifeq (,$(ONE_SHOT_MAKEFILE))
-include $(call all-makefiles-under,$(LOCAL_PATH))
+include $(call first-makefiles-under, $(LOCAL_PATH))
 endif
 
 endif