Release version 1.12 of the onos Maven plugin

Change-Id: If5644035ec61af893e678b8e45006d988a0aebdf
diff --git a/lib/pom.xml b/lib/pom.xml
index c6fa050..ed754fd 100644
--- a/lib/pom.xml
+++ b/lib/pom.xml
@@ -39,7 +39,7 @@
         <onos-build-conf.version>1.13.0-SNAPSHOT</onos-build-conf.version>
         <netty4.version>4.1.8.Final</netty4.version>
         <openflowj.version>3.2.1.onos</openflowj.version>
-        <onos-maven-plugin.version>${project.version}</onos-maven-plugin.version>
+        <onos-maven-plugin.version>1.12</onos-maven-plugin.version>
         <onos-yang-tools.version>2.4.1</onos-yang-tools.version>
         <osgi.version>5.0.0</osgi.version>
         <karaf.version>3.0.8</karaf.version>