spoolss-iremotewinspool-tests: Use more recent client OS version

spoolss-iremotewinspool-tests: Use more recent client OS version

Set torture test client info build, major, and minor
version numbers to Windows 7 and Windows Server 2008 R2 values

 buildnum: 7007
 major: 6
 minor: 1

Build number taken from
 [MS-RPRN] <168> Section 2.2.3.10.1

Major/Minor numbers taken from
 https://docs.microsoft.com/en-us/windows/desktop/sysinfo/operating-system-version

Signed-off-by: Justin Stephenson <jstephen@redhat.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Sep  8 04:35:56 CEST 2018 on sn-devel-144