Update xenvif to #8 ca17715a7e8c323eee505db4dba99d6fe0f72cb1
Update xenvif to #8 ca17715a7e8c323eee505db4dba99d6fe0f72cb1

Signed-off-by: Ben Chalmers <b3747009c0bd3b0a8ac423a403e103e776512006@citrix.com>

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