Resizing a unit test that intermittently exceeds the default small size time limit.

Change-Id: I89775fc3520c925987a43127cc5c442e7be6214b
diff --git a/core/net/BUILD b/core/net/BUILD
index 91ee022..683d5fe 100644
--- a/core/net/BUILD
+++ b/core/net/BUILD
@@ -22,6 +22,7 @@
         "org.onosproject.net.intent.impl.installer.AbstractIntentInstallerTest",
     ],
     test_deps = TEST_DEPS,
+    medium_tests = ["//core/net:src/test/java/org/onosproject/net/flowobjective/impl/InOrderFlowObjectiveManagerTest"],
     visibility = ["//visibility:public"],
     deps = COMPILE_DEPS,
 )