!13636 adjust performance of bert_thor in ci test script

From: @xsmq
Reviewed-by: @majorzhang,@lilongfei15
Signed-off-by: @majorzhang

tests/st/networks/models/bert/bert_performance/test_bert_thor.py

@@ -1,4 +1,4 @@
-# Copyright 2020 Huawei Technologies Co., Ltd
+# Copyright 2020-2021 Huawei Technologies Co., Ltd
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.