Fix bridge_mappings variable declaration to work with one nic

manifests/profile/neutron/router.pp

@@ -131,10 +131,9 @@ class iaas::profile::neutron::router (
   }
 
   if $external_device2 {
-   $bridge_mappings1="physnet1:br-ex1"
-   $bridge_mappings2="physnet2:br-ex2"
+    $bridge_mappings= ['physnet1:br-ex1','physnet2:br-ex2']
   } else {
-    $bridge_mappings1='physnet1:br-ex1'
+    $bridge_mappings=['physnet1:br-ex1']
   }
 
   class { '::neutron::agents::ml2::ovs':
@@ -144,7 +143,7 @@ class iaas::profile::neutron::router (
       tunnel_types => ['gre'],
 #double_external_network, variable modified
 #      bridge_mappings => ['external:br-ex'],
-      bridge_mappings => [$bridge_mappings1,$bridge_mappings2],
+      bridge_mappings => $bridge_mappings,
       require => File['etc_default_neutron-server'],
   }
 
@@ -307,4 +306,4 @@ class iaas::profile::neutron::router (
     }
   }
 
-}
+}
\ No newline at end of file