Release app version 5.2.1

Change-Id: Ieb9ff5d3613ea8f03997f01217dddcab771ce7e2
diff --git a/pom.xml b/pom.xml
index 1ce8fa3..2318885 100644
--- a/pom.xml
+++ b/pom.xml
@@ -30,13 +30,13 @@
     </parent>
     <groupId>org.opencord</groupId>
     <artifactId>olt</artifactId>
-    <version>5.2.0-SNAPSHOT</version>
+    <version>5.2.1</version>
     <packaging>pom</packaging>
     <description>OLT Application</description>
     <url>http://onosproject.org</url>
     <properties>
         <sadis.api.version>5.6.0</sadis.api.version>
-        <olt.api.version>5.2.0-SNAPSHOT</olt.api.version>
+        <olt.api.version>5.2.1</olt.api.version>
     </properties>
     <dependencies>
         <dependency>