Fixed loading of context property at startup

Change-Id: I4a1b3b3f07232378a6bb840efcabbaa0f74ef215
diff --git a/providers/openflow/flow/src/main/java/org/onosproject/provider/of/flow/impl/OpenFlowRuleProvider.java b/providers/openflow/flow/src/main/java/org/onosproject/provider/of/flow/impl/OpenFlowRuleProvider.java
index 7b1828d..6469cda 100644
--- a/providers/openflow/flow/src/main/java/org/onosproject/provider/of/flow/impl/OpenFlowRuleProvider.java
+++ b/providers/openflow/flow/src/main/java/org/onosproject/provider/of/flow/impl/OpenFlowRuleProvider.java
@@ -147,6 +147,8 @@
         controller.addListener(listener);
         controller.addEventListener(listener);
 
+        modified(context);
+
         pendingBatches = createBatchCache();
 
         createCollectors();