scsi: lpfc: Update lpfc version to 12.8.0.4

Update lpfc version to 12.8.0.4

Link: https://lore.kernel.org/r/20200828175332.130300-5-james.smart@broadcom.com


Co-developed-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>