Migrate App Usage host tests to CTSv2.

bug:21762834
Change-Id: I1d7d6dd6fc260b493082cd9bc73992256620e018
diff --git a/hostsidetests/usage/app/Android.mk b/hostsidetests/usage/app/Android.mk
index b23efbc..31b6d8f 100644
--- a/hostsidetests/usage/app/Android.mk
+++ b/hostsidetests/usage/app/Android.mk
@@ -23,6 +23,9 @@
 
 LOCAL_SDK_VERSION := current
 
-LOCAL_PACKAGE_NAME := CtsDeviceAppUsageTestApp
+LOCAL_PACKAGE_NAME := CtsAppUsageTestApp
+
+# tag this module as a cts_v2 test artifact
+LOCAL_COMPATIBILITY_SUITE := cts_v2
 
 include $(BUILD_CTS_SUPPORT_PACKAGE)