CP-14835: Recommendations for has_vendor_device
CP-14835: Recommendations for has_vendor_device

The xml in the "recommendations" field now has a recommendation for
"has_vendor_device": false by default, true for the relevant Windows
templates.

The has_vendor_device field in the VM record itself is always false.
(Also the auto_update_drivers field, which will be removed soon.)

Signed-off-by: Thomas Sanders <c547603d2dd860735c4f0c043b1348f5c48c02f8@citrix.com>

xenserver/guest-templates,xenserver/guest-templates