Work around compatibility problems with Intel ahci and Intel SSDs by retrying device detection if the port is still busy after our normal timeout.
Work around compatibility problems with Intel ahci and Intel SSDs by retrying
device detection if the port is still busy after our normal timeout.

based on a diff by chris@, based on a change in dragonflybsd
tested by Peter J Philipp
ok dlg@

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