Revert "Change test var name to match changes in cifmw"

ci/vars-autoscaling-tempest.yml

@@ -6,7 +6,7 @@ cifmw_test_operator_tempest_container: openstack-tempest-all
 cifmw_test_operator_tempest_image_tag: 'current-podified'
 # This value is used to populate the `tempestconfRun` parameter of the Tempest CR: https://openstack-k8s-operators.github.io/test-operator/crds.html#tempest-custom-resource
 # https://github.com/openstack-k8s-operators/ci-framework/blob/main/roles/test_operator/defaults/main.yml
-cifmw_test_operator_tempest_tempestconf_config:
+cifmw_tempest_tempestconf_config:
   overrides: |
       validation.run_validation true
       identity.v3_endpoint_type public