bind: Add unsupported warning

We don't want to build bind.

Signed-off-by: Pavel Zhukov <pavel.zhukov@huawei.com>

meta-ohos-core/recipes-connectivity/bind/bind_9.11.%.bbappend

+# SPDX-FileCopyrightText: Huawei Inc.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+do_configure_prepend(){
+	bbwarn "ISC BIND 9.11 or its libs is pulled in into the build. It is unsupported and possibly insecure!"
+	bbwarn "If ISC BIND is pulled in by dhcp-client, please consider switching to use NetworkManager."
+}