Fix return value for DecortController.group_provision method.

module_utils/decort_utils.py

@@ -4006,10 +4006,11 @@ class DecortController(object):
             vinses = list_vins,
             timeoutStart = arg_timeout
         )
-        self.decort_api_call(requests.post, api_url, api_params)
+        api_resp = self.decort_api_call(requests.post, api_url, api_params)
+        new_bsgroup_id = int(api_resp.text)
         self.result['failed'] = False
         self.result['changed'] = True
-        return
+        return new_bsgroup_id
     
     def group_delete(self,bs_id,gr_id):