r10691: This gets half-way to wbinfo -n. It acquires an lsa pipe, and does a

r10691: This gets half-way to wbinfo -n. It acquires an lsa pipe, and does a
queryinfopolicy. Idea is to get a consistency check between that and our
notion of the domain name and sid, and take the lsa pipe as the holder of the
central smbcli_tree that netlogon and samr use as well.

Volker
(This used to be commit 126c80aefc4f53c4ba79afc12d70602ef9055ddb)