Adding relative path

Change-Id: Id5e7493e9fada7989c7c1cecf7ca964c6e71c802
diff --git a/app/pom.xml b/app/pom.xml
index f9b38ea..ce7960c 100644
--- a/app/pom.xml
+++ b/app/pom.xml
@@ -21,6 +21,7 @@
         <artifactId>onos-app-igmpproxy</artifactId>
         <groupId>org.opencord</groupId>
         <version>2.1.0-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>