ROADM app version fix.

- use same version as ONOS version

Change-Id: I2b837bd0be95767e5b5c54a06a839451d45a87c2
diff --git a/apps/roadm/pom.xml b/apps/roadm/pom.xml
index 492f5c7..cd05ad4 100644
--- a/apps/roadm/pom.xml
+++ b/apps/roadm/pom.xml
@@ -32,7 +32,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <onos.version>1.9.0-SNAPSHOT</onos.version>
+        <onos.version>${project.version}</onos.version>
         <onos.app.name>org.onosproject.roadm</onos.app.name>
         <onos.app.title>ROADM Application</onos.app.title>
         <onos.app.category>Utility</onos.app.category>