[Doc] SPDX License Identifier

- Change to SPDX-License-Identifier: Apache-2.0

Change-Id: I8be26f68f275ab34b6894286c5aa9cef502c0f92
Signed-off-by: Abraham Arce <abraham.arce.moreno@intel.com>

doc/source/conf.py

@@ -1,5 +1,7 @@
 # -*- coding: utf-8 -*-
 #
+# SPDX-License-Identifier: Apache-2.0
+
 # Configuration file for the Sphinx documentation builder.
 #
 # This file does only contain a selection of the most common options. For a

releasenotes/source/conf.py

@@ -1,16 +1,6 @@
 # -*- coding: utf-8 -*-
-# 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-License-Identifier: Apache-2.0
 
 # stx-tools Release Notes documentation build configuration file.
 #