use test_current for CtsAppTestStubs

- for using TestApi

bug: 27435754
Change-Id: I18af51b980eecf081b422631d3416a1e0386b70c
diff --git a/tests/app/Android.mk b/tests/app/Android.mk
index 0acabaf..1fe21e9 100644
--- a/tests/app/Android.mk
+++ b/tests/app/Android.mk
@@ -36,8 +36,8 @@
 
 LOCAL_CTS_MODULE_CONFIG := $(LOCAL_PATH)/Old$(CTS_MODULE_TEST_CONFIG)
 
-LOCAL_SDK_VERSION := current
+LOCAL_SDK_VERSION := test_current
 
 include $(BUILD_CTS_PACKAGE)
 
-include $(call all-makefiles-under,$(LOCAL_PATH))
\ No newline at end of file
+include $(call all-makefiles-under,$(LOCAL_PATH))