samba-tool domain trust: fix trust compatibility to Windows Server 1709 and FreeIPA

[github at samba.org]

New comment by abartlet on Samba Github repository

https://github.com/samba-team/samba/pull/134#issuecomment-446874813
Comment:
Merged as c390728819e73cefbf02e0d52d22805930f4c45b and 4422f7382aad3090cb959ade030a02bf4fef81ac (a different patch set but getting smb2 support for RPC connections) in master for Samba 4.10