[CVP] Fix parameter name in test_check_services

Change-Id: I338bea5bb180ef9999d22b5acefc5af74f877ba3
Related-PROD: PROD-29928
diff --git a/test_set/cvp-sanity/tests/test_services.py b/test_set/cvp-sanity/tests/test_services.py
index e25015d..c704437 100644
--- a/test_set/cvp-sanity/tests/test_services.py
+++ b/test_set/cvp-sanity/tests/test_services.py
@@ -15,7 +15,7 @@
     Skips services if they are not consistent for all node.
     Inconsistent services will be checked with another test case
     """
-    exclude_services = utils.get_configuration().get("exclude_services", [])
+    exclude_services = utils.get_configuration().get("skipped_services", [])
     services_by_nodes = local_salt_client.cmd(tgt="L@"+','.join(nodes_in_group),
                                               fun='service.get_all',
                                               expr_form='compound')