Release app version 2.9.0 with API version 2.9.0

Change-Id: I4dcb4d0d4e9e458b9251ec3f6226e6fadbd02e32
diff --git a/app/pom.xml b/app/pom.xml
index de249d5..e37b0c2 100644
--- a/app/pom.xml
+++ b/app/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>aaa</artifactId>
         <groupId>org.opencord</groupId>
-        <version>5.9.0</version>
+        <version>2.9.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>