migrate net tests to cts_v2

bug:21762834
Change-Id: Ic86dee963720c1412a42ec231c81c97d7f322420
diff --git a/tests/cts/net/Android.mk b/tests/cts/net/Android.mk
index 6524871..716141d 100644
--- a/tests/cts/net/Android.mk
+++ b/tests/cts/net/Android.mk
@@ -40,6 +40,9 @@
 # uncomment when b/13249961 is fixed
 #LOCAL_SDK_VERSION := current
 
+# Tag this module as a cts_v2 test artifact
+LOCAL_COMPATIBILITY_SUITE := cts_v2
+
 include $(BUILD_CTS_PACKAGE)
 
 include $(call all-makefiles-under,$(LOCAL_PATH))