atm: Convert to using %pOFn instead of device_node.name

In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Cc: Chas Williams <3chas3@gmail.com>
Cc: linux-atm-general@lists.sourceforge.net
Cc: netdev@vger.kernel.org
Signed-off-by: NRob Herring <robh@kernel.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/atm/fore200e.c

@@ -754,8 +754,8 @@ static int fore200e_sba_proc_read(struct fore200e *fore200e, char *page)
 
 	regs = of_get_property(op->dev.of_node, "reg", NULL);
 
-	return sprintf(page, "   SBUS slot/device:\t\t%d/'%s'\n",
-		       (regs ? regs->which_io : 0), op->dev.of_node->name);
+	return sprintf(page, "   SBUS slot/device:\t\t%d/'%pOFn'\n",
+		       (regs ? regs->which_io : 0), op->dev.of_node);
 }
 
 static const struct fore200e_bus fore200e_sbus_ops = {