config unittests: use nic params

The target test cluster should have nic params, rather than a default
bridge.

Signed-off-by: Guido Trotter <ultrotter@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

test/ganeti.config_unittest.py

@@ -66,7 +66,7 @@ class TestConfigRunner(unittest.TestCase):
       highest_used_port=(constants.FIRST_DRBD_PORT - 1),
       mac_prefix="aa:00:00",
       volume_group_name="xenvg",
-      default_bridge=constants.DEFAULT_BRIDGE,
+      nicparams={constants.PP_DEFAULT: constants.NICC_DEFAULTS},
       tcpudp_port_pool=set(),
       default_hypervisor=constants.HT_FAKE,
       master_node=me.name,