Release app version 2.8.0 with API version 2.8.0

Change-Id: Id1b86072d0bef25ef4e7cfee799828b1032cda9c
diff --git a/app/pom.xml b/app/pom.xml
index a745fc7..3608c0a 100644
--- a/app/pom.xml
+++ b/app/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>dhcpl2relay</artifactId>
         <groupId>org.opencord</groupId>
-        <version>2.8.0-SNAPSHOT</version>
+        <version>2.8.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>