Merge in more makefile edits from repo:voltha-docs

Change-Id: Iba7f6e565b45c5e888a34bce295d8fada8ab2ce2
diff --git a/makefiles/include.mk b/makefiles/include.mk
index b6b90a1..746252c 100644
--- a/makefiles/include.mk
+++ b/makefiles/include.mk
@@ -1,6 +1,6 @@
 # -*- makefile -*-
 # -----------------------------------------------------------------------
-# Copyright 2022-2023 Open Networking Foundation (ONF) and the ONF Contributors
+# Copyright 2017-2023 Open Networking Foundation (ONF) and the ONF Contributors
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -13,8 +13,8 @@
 # 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: 2022-2023 Open Networking Foundation (ONF) and the ONF Contributors
+# -----------------------------------------------------------------------
+# SPDX-FileCopyrightText: 2017-2023 Open Networking Foundation (ONF) and the ONF Contributors
 # SPDX-License-Identifier: Apache-2.0
 # -----------------------------------------------------------------------
 # https://gerrit.opencord.org/plugins/gitiles/onf-make