Update XENVIF
Update XENVIF

Signed-off-by: Paul Durrant <dba6cd059c0054f8a3c62ba902cd9d7238853ee4@citrix.com>

benchalmers/win-installer,kostaslamda/win-installer,OwenSmith/win-installer,kostaslamda/win-installer,xenserver/win-installer,benchalmers/win-installer,benchalmers/win-installer,OwenSmith/win-installer,kostaslamda/win-installer,xenserver/win-installer,xenserver/win-installer,benchalmers/win-installer,OwenSmith/win-installer,xenserver/win-installer,kostaslamda/win-installer,kostaslamda/win-installer,OwenSmith/win-installer,xenserver/win-installer,benchalmers/win-installer,OwenSmith/win-installer