Add floating network config option

for integration tests.

Change-Id: I14c93a5ffb5e336258105869dcb5fbbe4d6c9e6f
diff --git a/common/config.py b/common/config.py
index f07ee86..ce7407a 100644
--- a/common/config.py
+++ b/common/config.py
@@ -65,6 +65,9 @@
     cfg.StrOpt('fixed_network_name',
                default='private',
                help="Visible fixed network name "),
+    cfg.StrOpt('floating_network_name',
+               default='public',
+               help="Visible floating network name "),
     cfg.StrOpt('boot_config_env',
                default=('heat_integrationtests/scenario/templates'
                         '/boot_config_none_env.yaml'),