libertas: Use netdev_<level> or dev_<level> where possible

Using the more descriptive logging styles gives a bit
more information about the device being operated on.

Makes the object trivially smaller too.

$ size drivers/net/wireless/libertas/built-in.o.*
 187730	   2973	  38488	 229191	  37f47	drivers/net/wireless/libertas/built-in.o.new
 188195	   2973	  38488	 229656	  38118	drivers/net/wireless/libertas/built-in.o.old

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/libertas/mesh.c b/drivers/net/wireless/libertas/mesh.c
index 054ac07..24cf066 100644
--- a/drivers/net/wireless/libertas/mesh.c
+++ b/drivers/net/wireless/libertas/mesh.c
@@ -269,7 +269,7 @@
 		lbs_add_mesh(priv);
 
 		if (device_create_file(&dev->dev, &dev_attr_lbs_mesh))
-			pr_err("cannot register lbs_mesh attribute\n");
+			netdev_err(dev, "cannot register lbs_mesh attribute\n");
 
 		ret = 1;
 	}
@@ -975,7 +975,7 @@
 		return ret;
 
 	if (defs.meshie.val.mesh_id_len > IEEE80211_MAX_SSID_LEN) {
-		pr_err("inconsistent mesh ID length\n");
+		dev_err(dev, "inconsistent mesh ID length\n");
 		defs.meshie.val.mesh_id_len = IEEE80211_MAX_SSID_LEN;
 	}