e1000e: Use netdev_info instead of pr_info for link messages

Replace the pr_info calls with netdev_info in all cases related to the
netdevice link state.

As a result of this patch the link messages will change as shown below.
Before:
e1000e: ens3 NIC Link is Down
e1000e: ens3 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx

After:
e1000e 0000:00:03.0 ens3: NIC Link is Down
e1000e 0000:00:03.0 ens3: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/e1000e/netdev.c

@@ -4723,7 +4723,7 @@ int e1000e_close(struct net_device *netdev)
 		e1000_free_irq(adapter);
 
 		/* Link status message must follow this format */
-		pr_info("%s NIC Link is Down\n", netdev->name);
+		netdev_info(netdev, "NIC Link is Down\n");
 	}
 
 	napi_disable(&adapter->napi);
@@ -5073,8 +5073,9 @@ static void e1000_print_link_info(struct e1000_adapter *adapter)
 	u32 ctrl = er32(CTRL);
 
 	/* Link status message must follow this format for user tools */
-	pr_info("%s NIC Link is Up %d Mbps %s Duplex, Flow Control: %s\n",
-		adapter->netdev->name, adapter->link_speed,
+	netdev_info(adapter->netdev,
+		    "NIC Link is Up %d Mbps %s Duplex, Flow Control: %s\n",
+		    adapter->link_speed,
 		    adapter->link_duplex == FULL_DUPLEX ? "Full" : "Half",
 		    (ctrl & E1000_CTRL_TFCE) && (ctrl & E1000_CTRL_RFCE) ? "Rx/Tx" :
 		    (ctrl & E1000_CTRL_RFCE) ? "Rx" :
@@ -5307,7 +5308,7 @@ static void e1000_watchdog_task(struct work_struct *work)
 			adapter->link_speed = 0;
 			adapter->link_duplex = 0;
 			/* Link status message must follow this format */
-			pr_info("%s NIC Link is Down\n", adapter->netdev->name);
+			netdev_info(netdev, "NIC Link is Down\n");
 			netif_carrier_off(netdev);
 			netif_stop_queue(netdev);
 			if (!test_bit(__E1000_DOWN, &adapter->state))