esp_bootloader_format: Adds bootloader description structure to read bootloader version from app

Closes https://github.com/espressif/esp-idf/issues/8800
Closes https://github.com/espressif/esp-idf/issues/9132

tools/test_apps/build_system/ldalign_test/check_alignment.py

@@ -1,18 +1,7 @@
 #!/usr/bin/env python
 #
-# Copyright 2020 Espressif Systems (Shanghai) PTE LTD
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-FileCopyrightText: 2020-2023 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 #
 
 import argparse