scsi: lpfc: Make lpfc_sli4_oas_verify static

Fix sparse warning:

drivers/scsi/lpfc/lpfc_init.c:13091:1: warning:
 symbol 'lpfc_sli4_oas_verify' was not declared. Should it be static?
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/lpfc/lpfc_init.c

@@ -13087,7 +13087,7 @@ lpfc_io_resume(struct pci_dev *pdev)
  * is destroyed.
  *
  **/
-void
+static void
 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
 {