Add dependancies on test apps outside of a test's directory.

bug:21762834
Change-Id: I115ebb0d1dcd7ff9e6875cd9e589706a57bab6d4
diff --git a/hostsidetests/ui/Android.mk b/hostsidetests/ui/Android.mk
index 033105e..b0de7fc 100644
--- a/hostsidetests/ui/Android.mk
+++ b/hostsidetests/ui/Android.mk
@@ -28,6 +28,8 @@
 
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
 
+$(COMPATIBILITY_TESTCASES_OUT_cts_v2)/CtsUiHostTestCases.jar : $(COMPATIBILITY_TESTCASES_OUT_cts_v2)/com.replica.replicaisland.apk
+
 LOCAL_CTS_TEST_PACKAGE := android.ui.cts
 
 # Tag this module as a cts_v2 test artifact