i40e: Fix a message string

Change string from "Side Band" to "Sideband" for consistency.

Change-ID: I45f05466bb5c63b0f999d743312bcb61b5bd6518
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/i40e/i40e_main.c

@@ -6396,7 +6396,7 @@ static int i40e_sw_init(struct i40e_pf *pf)
 			pf->flags |= I40E_FLAG_FD_SB_ENABLED;
 		} else {
 			dev_info(&pf->pdev->dev,
-				 "Flow Director Side Band mode Disabled in MFP mode\n");
+				 "Flow Director Sideband mode Disabled in MFP mode\n");
 		}
 		pf->fdir_pf_filter_count =
 				 pf->hw.func_caps.fd_filters_guaranteed;