[SCSI] qla2xxx: Correct abort-semantics in qla2x00_abort_all_cmds().

As all commands queued on the physical HBA should be aborted and
returned to the upper-layers.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>