Enable LDAP for sudo and build nss_ldap. Fixes #9399
(cherry picked from commit 7db5a396d398b010bfb70048881a6cec0577338f)
Enable LDAP for sudo and build nss_ldap. Fixes #9399
(cherry picked from commit 7db5a396d398b010bfb70048881a6cec0577338f)