CA-114333: Allow Linux HVM guests to use >4 devices
CA-114333: Allow Linux HVM guests to use >4 devices

Signed-off-by: John Else <37b74501daa612e48fea94f9846ed4ddeb6a8f07@citrix.com>

johnelse/xenopsd,koushikcgit/xenopsd,thomassa/xenopsd,euanh/xenopsd,koushikcgit/xenopsd,johnelse/xenopsd,cheng--zhang/xenopsd,djs55/xenopsd,thomassa/xenopsd,koushikcgit/xenopsd,cheng--zhang/xenopsd,djs55/xenopsd,johnelse/xenopsd,djs55/xenopsd,euanh/xenopsd,cheng--zhang/xenopsd,euanh/xenopsd,thomassa/xenopsd