If devices have roamed, complain once then update the metadata, just like we do for roaming volumes.
If devices have roamed, complain once then update the metadata, just like
we do for roaming volumes.

ok marco@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars