bluez5: Add Copyright and License for reuse compliance

Signed-off-by: Zbigniew Bodek <zbigniew.bodek@huawei.com>

meta-ohos-demo/recipes-connectivity/bluez5/bluez5_%.bbappend

+# SPDX-FileCopyrightText: 2021 Huawei Inc.
+#
+# SPDX-License-Identifier: Apache-2.0
+
 do_install_append() {
 	# Install main.conf file and turn on AutoEnable flag
 	# to bring up BLE controller on boot.