pom for common YANG model

Change-Id: I997125c647591942f0be3647a7f53697248971e8
diff --git a/models/pom.xml b/models/pom.xml
index e945fd6..1c321b1 100644
--- a/models/pom.xml
+++ b/models/pom.xml
@@ -30,6 +30,7 @@
     <description>ONOS YANG models</description>
 
     <modules>
+        <module>common</module>
         <module>microsemi</module>
         <module>openroadm</module>
         <module>l3vpn</module>