More Windows 8.1 nodes added.

Now 5 x86 and x64 nodes configuredö

Change-Id: Iaee228727e64b8c018c6958a879de26304c4ffd7
Reviewed-by: Antti Kokko <antti.kokko@digia.com>
Reviewed-by: Heikki Halmet <heikki.halmet@digia.com>