igb: Cleanups for messaging

This patch fixes WARNING:PREFER_PR_LEVEL and WARNING:SPLIT_STRING
from checkpatch file check.

Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/igb/e1000_mac.c b/drivers/net/ethernet/intel/igb/e1000_mac.c
index 5910a93..fc2c76e 100644
--- a/drivers/net/ethernet/intel/igb/e1000_mac.c
+++ b/drivers/net/ethernet/intel/igb/e1000_mac.c
@@ -866,8 +866,7 @@
 			goto out;
 
 		if (!(mii_status_reg & MII_SR_AUTONEG_COMPLETE)) {
-			hw_dbg("Copper PHY and Auto Neg "
-				 "has not completed.\n");
+			hw_dbg("Copper PHY and Auto Neg has not completed.\n");
 			goto out;
 		}
 
@@ -932,8 +931,7 @@
 				hw_dbg("Flow Control = FULL.\r\n");
 			} else {
 				hw->fc.current_mode = e1000_fc_rx_pause;
-				hw_dbg("Flow Control = "
-				       "RX PAUSE frames only.\r\n");
+				hw_dbg("Flow Control = RX PAUSE frames only.\r\n");
 			}
 		}
 		/* For receiving PAUSE frames ONLY.