Allow removable disks to be spun up if they ask for initialization after being opened.  Use SC_DEBUG() to suppress some verbiage during spin up. Return actual errors encountered during attempt to spin up, rather than always returning EIO.
Allow removable disks to be spun up if they ask for initialization
after being opened.  Use SC_DEBUG() to suppress some verbiage during
spin up. Return actual errors encountered during attempt to spin up,
rather than always returning EIO.

ok dlg@

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