libvirt:virnetdevtap.c rejects MAC addresses starting with 0xFE
libvirt:virnetdevtap.c rejects MAC addresses starting with 0xFE

So we magically transform these to 0xFD, to avoid the error.

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