Release app version 2.5.1 with API version 2.5.1

Change-Id: I5493e209dd315a51dc073b046a8589b7f40ad2f2
diff --git a/api/pom.xml b/api/pom.xml
index c18173a..c6086ad 100644
--- a/api/pom.xml
+++ b/api/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.opencord</groupId>
         <artifactId>bng</artifactId>
-        <version>2.5.1-SNAPSHOT</version>
+        <version>2.5.1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>