s3-rpc_client: Advertise Windows 7 client info

s3-rpc_client: Advertise Windows 7 client info

Client printing operations currently fail against Windows
Server 2016 with Access Denied if a client os build number
lower than 6000 is advertised. Increase the default build number,
major, and minor versions to values associated with client
OS versoins Windows 7 and Windows Server 2008 R2.

The build number value specifically needs to be increased to
allow these operations to succeed.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13597

Signed-off-by: Justin Stephenson <jstephen@redhat.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>