i40e: Remove unicast log when VF is leaving multicast mode.

This patch removes unicast log when VF is leaving multicast mode.
Added check of vf->vf_states &
I40E_VF_STATE_MC_PROMISC/I40E_VF_STATE_UC_PROMISC.
Without this commit, leaving multicast mode logs "unset unicast"
in dmsg.
Signed-off-by: Czeslaw Zagorski <czeslawx.zagorski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c

@@ -2043,30 +2043,33 @@ static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg)
 		alluni = true;
 	aq_ret = i40e_config_vf_promiscuous_mode(vf, info->vsi_id, allmulti,
 						 alluni);
-	if (!aq_ret) {
+	if (aq_ret)
+		goto err_out;
+
 	if (allmulti) {
+		if (!test_and_set_bit(I40E_VF_STATE_MC_PROMISC,
+				      &vf->vf_states))
 			dev_info(&pf->pdev->dev,
 				 "VF %d successfully set multicast promiscuous mode\n",
 				 vf->vf_id);
-			set_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states);
-		} else {
+	} else if (test_and_clear_bit(I40E_VF_STATE_MC_PROMISC,
+				      &vf->vf_states))
 		dev_info(&pf->pdev->dev,
 			 "VF %d successfully unset multicast promiscuous mode\n",
 			 vf->vf_id);
-			clear_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states);
-		}
+
 	if (alluni) {
+		if (!test_and_set_bit(I40E_VF_STATE_UC_PROMISC,
+				      &vf->vf_states))
 			dev_info(&pf->pdev->dev,
 				 "VF %d successfully set unicast promiscuous mode\n",
 				 vf->vf_id);
-			set_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states);
-		} else {
+	} else if (test_and_clear_bit(I40E_VF_STATE_UC_PROMISC,
+				      &vf->vf_states))
 		dev_info(&pf->pdev->dev,
 			 "VF %d successfully unset unicast promiscuous mode\n",
 			 vf->vf_id);
-			clear_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states);
-		}
-	}
+
 err_out:
 	/* send the response to the VF */
 	return i40e_vc_send_resp_to_vf(vf,