net/mlx4_core: Replace pr_warning() with pr_warn()

As checkpatch suggests. Also changed some printk's into pr_*

Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index 357dcb0..59c7fd4 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -1887,9 +1887,9 @@
 			if (toggle != slt) {
 				if (master->slave_state[slave].comm_toggle
 				    != slt) {
-					printk(KERN_INFO "slave %d out of sync. read toggle %d, state toggle %d. Resynching.\n",
-					       slave, slt,
-					       master->slave_state[slave].comm_toggle);
+					pr_info("slave %d out of sync. read toggle %d, state toggle %d. Resynching.\n",
+						slave, slt,
+						master->slave_state[slave].comm_toggle);
 					master->slave_state[slave].comm_toggle =
 						slt;
 				}