scsi: lpfc: Ensure HBA_SETUP flag is used only for SLI4 in dev_loss_tmo_callbk

scsi: lpfc: Ensure HBA_SETUP flag is used only for SLI4 in dev_loss_tmo_callbk

For SLI3, the HBA_SETUP flag is never set so the lpfc_dev_loss_tmo_callbk
always early returns.  Add a phba->sli_rev check for SLI4 mode so that
the SLI3 path can flow through the original dev_loss_tmo worker thread
design to lpfc_dev_loss_tmo_handler instead of early return.

Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20250618192138.124116-9-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>