Adding support to override test size to avoid hitting test runner time limits.

Change-Id: I3844bfba7b64a856e8ed4c3db5d8363880bb9b9e
diff --git a/apps/openstacknetworking/app/BUILD b/apps/openstacknetworking/app/BUILD
index 529c9c0..8ca9b1b 100644
--- a/apps/openstacknetworking/app/BUILD
+++ b/apps/openstacknetworking/app/BUILD
@@ -38,6 +38,7 @@
     bundle_classpath = get_openstack4j_deps_path() + get_jackson_deps_path(),
     import_packages = INCLUDE_PACKAGES + "," + EXCLUDE_PACKAGES + "," + ALL_PACKAGES,
     test_deps = TEST_DEPS,
+    medium_tests = ["src/test/java/org/onosproject/openstacknetworking/util/OpenstackNetworkingUtilTest"],
     web_context = "/onos/openstacknetworking",
     deps = COMPILE_DEPS,
 )