Support to publish port TX and RX stats in openstacktelemetry

Change-Id: I368fb676e4817cd01e5782a3b37170e2b9a5c6bd
diff --git a/apps/openstacktelemetry/api/src/main/java/org/onosproject/openstacktelemetry/api/StatsFlowRuleAdminService.java b/apps/openstacktelemetry/api/src/main/java/org/onosproject/openstacktelemetry/api/StatsFlowRuleAdminService.java
index 7fed73a..dcf682d 100644
--- a/apps/openstacktelemetry/api/src/main/java/org/onosproject/openstacktelemetry/api/StatsFlowRuleAdminService.java
+++ b/apps/openstacktelemetry/api/src/main/java/org/onosproject/openstacktelemetry/api/StatsFlowRuleAdminService.java
@@ -44,7 +44,7 @@
      *
      * @return a set of flow infos
      */
-    Set<FlowInfo> getFlowInfo();
+    Set<FlowInfo> getFlowInfos();
 
     /**
      * Deletes stat flow rule.