scsi: Make asc/ascq 44/0 fatal with ENXIO

44/0: INTERNAL TARGET FAILURE

Several different HGST/WD hard disks report this during geom
tasting. Several vendor manuals indicate this is not recoverable as
well, though are a bit coy as to whether it's permanant for all I/O or
just for this particular one. An internet search resolves the ambiguity
in favor of permanant error more generally, rather than for a specific
LBA or LBA range.

This has the side effect of speeding up boot for systems that have
drives that have failed with this symptom.

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