CA-66403: Host evacuate checks HVM guests for PV drivers
CA-66403: Host evacuate checks HVM guests for PV drivers

An incorrect patch (sha 42914ac) caused host_evacuate to check the PV drivers
for PV guests, but not for HVM guests. This causes a rolling pool upgrade to
fail when it tries to migrate HVM guests which don't have PV drivers installed.

Signed-off-by: Mike McClurg <d5d39725aee3103039228164deec3c7acc6f60e3@citrix.com>

djs55/xcp-networkd,djs55/squeezed,koushikcgit/xcp-rrdd,djs55/xcp-rrdd,johnelse/xcp-rrdd,koushikcgit/xcp-networkd,koushikcgit/xcp-rrdd,koushikcgit/xcp-networkd,djs55/xcp-networkd,simonjbeaumont/xcp-rrdd,sharady/xcp-networkd,sharady/xcp-networkd,djs55/xcp-rrdd,robhoes/squeezed,simonjbeaumont/xcp-rrdd,johnelse/xcp-rrdd,koushikcgit/xcp-rrdd