scsi: lpfc: Requeue SCSI I/O to upper layer when fw reports link down

scsi: lpfc: Requeue SCSI I/O to upper layer when fw reports link down

During heavy I/O stress tests with 100+ vports and cable pulls, it may take
a while before the vport logs back into the fabric to resume I/O.

Currently, the driver immediately fails the I/O with DID_ERROR.

Change behavior to return DID_REQUEUE, and rely on SCSI layer's max retry
of 5 before erroring out the I/O.

Link: https://lore.kernel.org/r/20220412222008.126521-6-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>