Unhardcode dogtag port in barbican

The patch brings the ability to redefine port for
dogtag in barbican.

Change-Id: Ie3c8ab91a7d44a56f51b34ad985e2ac42eb7c590
Related-PROD: PROD-21338 (PROD:21338)
diff --git a/metadata/service/server/plugin/dogtag.yml b/metadata/service/server/plugin/dogtag.yml
index 3b862f0..e3baa90 100644
--- a/metadata/service/server/plugin/dogtag.yml
+++ b/metadata/service/server/plugin/dogtag.yml
@@ -2,12 +2,13 @@
   _param:
     barbican_dogtag_host: localhost
     barbican_dogtag_simple_cmc_profile: 'caOtherCert'
+    barbican_dogtag_port: 8443
   barbican:
     server:
       plugin:
         dogtag:
           dogtag_host: ${_param:barbican_dogtag_host}
-          dogtag_port: 8443
+          dogtag_port: ${_param:barbican_dogtag_port}
           nss_db_path: '/etc/barbican/alias'
           nss_db_path_ca: '/etc/barbican/alias-ca'
           nss_password: "${_param:barbican_dogtag_nss_password}"