ASoC: ac97: fix parent assignment

Upstream GPIO has substituted .dev for .parent in struct gpio_chip.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/sound/soc/soc-ac97.c b/sound/soc/soc-ac97.c
index ae563e3..a201265 100644
--- a/sound/soc/soc-ac97.c
+++ b/sound/soc/soc-ac97.c
@@ -142,7 +142,7 @@
 	gpio_priv->codec = codec;
 	gpio_priv->gpio_chip = snd_soc_ac97_gpio_chip;
 	gpio_priv->gpio_chip.ngpio = AC97_NUM_GPIOS;
-	gpio_priv->gpio_chip.dev = codec->dev;
+	gpio_priv->gpio_chip.parent = codec->dev;
 	gpio_priv->gpio_chip.base = -1;
 
 	ret = gpiochip_add(&gpio_priv->gpio_chip);