mtd: lpc32xx_slc: Use of_get_named_gpio()

This patch makes the lpc32xx_slc driver use of_get_named_gpio() instead of
of_get_named_gpio_flags() whose flags are discarded anyway.

Signed-off-by: Roland Stigge <[e-mail]>
Acked-by: Alexandre Pereira da Silva <[e-mail]>
Signed-off-by: Artem Bityutskiy <[e-mail]>
Signed-off-by: David Woodhouse <[e-mail]>

drivers/mtd/nand/lpc32xx_slc.c

···
 	}
 
 	pdata->use_bbt = of_get_nand_on_flash_bbt(np);
-	pdata->wp_gpio = of_get_named_gpio_flags(np, "gpios", 0, NULL);
+	pdata->wp_gpio = of_get_named_gpio(np, "gpios", 0);
 
 	return pdata;
 }