Updating version to 1.7.0-rc3 for the RC

Change-Id: Id6255010c0edb17eae24c2ed5aabb02cdfa7a33a
diff --git a/apps/iptopology-api/pom.xml b/apps/iptopology-api/pom.xml
index c2997de..3a0d850 100644
--- a/apps/iptopology-api/pom.xml
+++ b/apps/iptopology-api/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <groupId>org.onosproject</groupId>
         <artifactId>onos-apps</artifactId>
-        <version>1.7.0-SNAPSHOT</version>
+        <version>1.7.0-rc3</version>
     </parent>
     <artifactId>onos-app-iptopology-api</artifactId>
     <packaging>bundle</packaging>