Move parse_args to nova.config

The flags module will eventually be removed and this is a first step
towards that.

Change-Id: I729b08900e53e2ae6db10633dcff3be59720fa6f

bin/nova-consoleauth

@@ -32,13 +32,14 @@ if os.path.exists(os.path.join(possible_topdir, 'nova', '__init__.py')):
 
 
 from nova.consoleauth import manager
+from nova import config
 from nova import flags
 from nova.openstack.common import log as logging
 from nova import service
 
 
 if __name__ == "__main__":
-    flags.parse_args(sys.argv)
+    config.parse_args(sys.argv)
     FLAGS = flags.FLAGS
     logging.setup("nova")
     server = service.Service.create(binary='nova-consoleauth',