Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/drivers/net/mlx4/en_main.c b/drivers/net/mlx4/en_main.c
index 9317b61..9276b1b2 100644
--- a/drivers/net/mlx4/en_main.c
+++ b/drivers/net/mlx4/en_main.c
@@ -236,7 +236,7 @@
 		goto err_mr;
 	}
 
-	/* Configure wich ports to start according to module parameters */
+	/* Configure which ports to start according to module parameters */
 	mdev->port_cnt = 0;
 	mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH)
 		mdev->port_cnt++;