Added instance_floating_ip_net variable to our packer build to define Network...

Added instance_floating_ip_net variable to our packer build to define Network to associate the floating IP with openstack build instance

xdmod/image.pkr.hcl

@@ -2,6 +2,7 @@ source "openstack" "image" {
   flavor                   = "${var.flavor}"
   image_name               = "${var.build_image_name}"
   floating_ip_network      = "${var.floating_ip_network}"
+  instance_floating_ip_net = "${var.instance_floating_ip_net}"
   instance_name            = "${var.build_instance_name}"
   networks                 = ["${var.external_net}", "${var.internal_net}"]
   reuse_ips                = "false"