Added test to kill and restart service

Changes:
      - Kill the list of services and expect killed services restart
      - Test case added to test_service_restart_policy.robot suite
Tested:
      - Tested redfish/extended/test_service_restart_policy.robot

Signed-off-by: ganesanb <ganesanb@ami.com>
Change-Id: I01fd08aa17d5ea1e9280014be93241fc5c68e644
diff --git a/data/platform_variables.py b/data/platform_variables.py
new file mode 100644
index 0000000..94d8a53
--- /dev/null
+++ b/data/platform_variables.py
@@ -0,0 +1,21 @@
+#!/usr/bin/env python3 -u
+
+r"""
+ Define methods to import platform specific files.
+"""
+
+import sys
+from robot.libraries.BuiltIn import BuiltIn
+import imp
+import string
+import importlib
+
+
+def get_service_restart_policy_services(module_name):
+    r"""
+    Gets the service list that gives in the respective platform specific file.
+    """
+    m = importlib.import_module(module_name)
+    service_restart_policy_services = dict.copy(m.SERVICES)
+
+    return service_restart_policy_services