acpi: explicitly account for >1 device per slot Slot present bit is cleared apparently for each device. Hotplug and non hotplug devices should not mix normally, and we only set the bit when we add a device so it should all work out, but it's more robust to explicitly account for more than one device per slot. Acked-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>