ITS#9739 fix undefined reference to ber_sockbuf_io_udp & undefined symbol

Fix of lber.mao & ldap.map from Fedora with URL below: https://src.fedoraproject.org/rpms/openldap/raw/rawhide/f/openldap-add-export-symbols-LDAP_CONNECTIONLESS.patch

From 6779e56fafb0aa8ae5efa7068da34a630b51b530 Mon Sep 17 00:00:00 2001 From: Simon Pichugin spichugi@redhat.com Date: Fri, 5 Aug 2022 13:23:52 -0700 Subject: [PATCH] Add export symbols related to LDAP_CONNECTIONLESS

But above patch is not complete, 'ber_sockbuf_io_udp' is part of an unsupported feature (cldap or ldap over udp), only built when the unsupported LDAP_CONNECTIONLESS flag is defined. All the user of 'ber_sockbuf_io_udp' are included by #ifdef, so it make no sense to not include it too.

Signed-off-by: Z. Liu zhixu.liu@gmail.com