scsi: lpfc: Fix missing prototype warning for lpfc_fdmi_vendor_attr_mi()

Function needs to be declared as static.

Link: https://lore.kernel.org/r/20201119203328.121772-1-james.smart@broadcom.com
Fixes: 8aaa7bcf ("scsi: lpfc: Add FDMI Vendor MIB support")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/lpfc/lpfc_ct.c

@@ -3295,7 +3295,7 @@ lpfc_fdmi_smart_attr_security(struct lpfc_vport *vport,
 	return size;
 }
 
-int
+static int
 lpfc_fdmi_vendor_attr_mi(struct lpfc_vport *vport,
 			  struct lpfc_fdmi_attr_def *ad)
 {