amd/pvh: enable ACPI C1E disable quirk on PVH Dom0

amd/pvh: enable ACPI C1E disable quirk on PVH Dom0

PV Dom0 has a quirk for some AMD processors, where enabling ACPI can
also enable C1E mode. Apply the same workaround as done on PV for a
PVH Dom0, which consist on trapping accesses to the SMI command IO
port and disabling C1E if ACPI is enabled.

Reported-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reviewed-by: Wei Liu <wei.liu2@citrix.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>