s4-rpc_server: Allow each interface to declare if it uses handles

s4-rpc_server: Allow each interface to declare if it uses handles

Pick up change from Samba:

    commit ffb8b50e3c07c833fb7b1a583d21f9dc1166a0a6
    Author: Andrew Bartlett <abartlet@samba.org>
    Date:   Mon Nov 14 11:24:03 2016 +1300

        s4-rpc_server: Allow each interface to declare if it uses handles

        This will allow the NETLOGON server in the AD DC to declare that it does not use
        handles, and so allow some more flexibility with association groups

        Signed-off-by: Andrew Bartlett <abartlet@samba.org>
        Reviewed-by: Stefan Metzmacher <metze@samba.org>
Change-Id: Ic09452d27493ff913f5a5c064a038e3783e91df2
Reviewed-on: https://code.wireshark.org/review/23704
Reviewed-by: Guy Harris <guy@alum.mit.edu>