mtd: nand: gpio: Fix ALE gpio configuration

Fixes a copy/paste error in commit f3d0d8d ("mtd: nand: gpio:
Convert to use GPIO descriptors") which breaks gpio-nand driver

Fixes: f3d0d8d ("mtd: nand: gpio: Convert to use GPIO descriptors")
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Richard Weinberger <richard@nod.at>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Richard Weinberger <richard@nod.at>

drivers/mtd/nand/gpio.c

@@ -253,9 +253,9 @@ static int gpio_nand_probe(struct platform_device *pdev)
 		goto out_ce;
 	}
 
-	gpiomtd->nwp = devm_gpiod_get(dev, "ale", GPIOD_OUT_LOW);
-	if (IS_ERR(gpiomtd->nwp)) {
-		ret = PTR_ERR(gpiomtd->nwp);
+	gpiomtd->ale = devm_gpiod_get(dev, "ale", GPIOD_OUT_LOW);
+	if (IS_ERR(gpiomtd->ale)) {
+		ret = PTR_ERR(gpiomtd->ale);
 		goto out_ce;
 	}