[SCSI] lpfc: unify two if branches with the same code in lpfc_decode_firmware_rev()

Regardless of the flag state, the branches execute the same code

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>