Build Smoke tests against the SDK.

Done so the new 'launch all apps' test can be utilized on older platforms.

Change-Id: Ie74ce258ceb372e78a0634a633bbb19dcd8e2779
diff --git a/tests/SmokeTest/Android.mk b/tests/SmokeTest/Android.mk
index 0adfd4c..591a84e 100644
--- a/tests/SmokeTest/Android.mk
+++ b/tests/SmokeTest/Android.mk
@@ -6,11 +6,11 @@
 # This builds "SmokeTestApp"
 LOCAL_SRC_FILES := $(call all-java-files-under, src)
 
-LOCAL_JAVA_LIBRARIES := android.test.runner
-
 LOCAL_PACKAGE_NAME := SmokeTestApp
 
+LOCAL_SDK_VERSION := 8
+
 include $(BUILD_PACKAGE)
 
 # This builds "SmokeTest"
-include $(call all-makefiles-under,$(LOCAL_PATH))
\ No newline at end of file
+include $(call all-makefiles-under,$(LOCAL_PATH))