black: re-format

black and isort are enabled in the openbmc-build-scripts on Python files
to have a consistent formatting.  Re-run the formatter on the whole
repository.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I944f1915ece753f72a3fa654902d445a9749d0f9
diff --git a/data/platform_variables.py b/data/platform_variables.py
index 94d8a53..512b8ea 100644
--- a/data/platform_variables.py
+++ b/data/platform_variables.py
@@ -4,11 +4,12 @@
  Define methods to import platform specific files.
 """
 
-import sys
-from robot.libraries.BuiltIn import BuiltIn
 import imp
-import string
 import importlib
+import string
+import sys
+
+from robot.libraries.BuiltIn import BuiltIn
 
 
 def get_service_restart_policy_services(module_name):