dockersetup: formatting fixes

- Move copyright/license statement to top
- Tabs to spaces
- Drop trailing spaces

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>

dockersetup.py

@@ -1,23 +1,27 @@
 #!/usr/bin/env python3
-import argparse
-import re
-import subprocess
-import time
-import random
+
+# Layer index Docker setup script
+#
+# Copyright (C) 2018 Intel Corporation
+# Author: Amber Elliot <amber.n.elliot@intel.com>
+#
+# Licensed under the MIT license, see COPYING.MIT for details
 
 # This script will make a cluster of 5 containers:
-
+#
 #  - layersapp: the application
 #  - layersdb: the database
 #  - layersweb: NGINX web server (as a proxy and for serving static content)
 #  - layerscelery: Celery (for running background jobs)
 #  - layersrabbit: RabbitMQ (required by Celery)
-
-# It will build and run these containers and set up the database.
-# Copyright (C) 2018 Intel Corporation
-# Author: Amber Elliot <amber.n.elliot@intel.com>
 #
-# Licensed under the MIT license, see COPYING.MIT for details
+# It will build and run these containers and set up the database.
+
+import argparse
+import re
+import subprocess
+import time
+import random
 
 def get_args():
     parser = argparse.ArgumentParser(