ASoC: simple-card: Simplify error msg in simple_card_dai_link_of()

It would look better to use prop instead.
Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

sound/soc/generic/simple-card.c

@@ -166,8 +166,7 @@ static int simple_card_dai_link_of(struct device_node *node,
 	np = of_get_child_by_name(node, prop);
 	if (!np) {
 		ret = -EINVAL;
-		dev_err(dev, "%s: Can't find simple-audio-card,cpu DT node\n",
-			__func__);
+		dev_err(dev, "%s: Can't find %s DT node\n", __func__, prop);
 		goto dai_link_of_err;
 	}
 
@@ -198,8 +197,7 @@ static int simple_card_dai_link_of(struct device_node *node,
 	np = of_get_child_by_name(node, prop);
 	if (!np) {
 		ret = -EINVAL;
-		dev_err(dev, "%s: Can't find simple-audio-card,codec DT node\n",
-			__func__);
+		dev_err(dev, "%s: Can't find %s DT node\n", __func__, prop);
 		goto dai_link_of_err;
 	}