OpenFlowRuleProvider is now configurable with respect to flowPollFrequency.

Change-Id: I3a559a9cd65df1ae56d80017696452788fc08d91
diff --git a/providers/openflow/flow/pom.xml b/providers/openflow/flow/pom.xml
index 5981b7e..6cd60eb 100644
--- a/providers/openflow/flow/pom.xml
+++ b/providers/openflow/flow/pom.xml
@@ -31,4 +31,10 @@
 
     <description>ONOS OpenFlow protocol flow provider</description>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.osgi</groupId>
+            <artifactId>org.osgi.compendium</artifactId>
+        </dependency>
+    </dependencies>
 </project>