leds: leds-gpio: Use dev_info instead of printk

Fixes the following checkpatch warning:
WARNING: Prefer netdev_info(netdev, ... then dev_info(dev, ... then pr_info(...  to printk(KERN_INFO ...
FILE: leds/leds-gpio.c:105:
		printk(KERN_INFO "Skipping unavailable LED gpio %d (%s)\n",

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index 77e2e40..4f31792 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -102,7 +102,7 @@
 
 	/* skip leds that aren't available */
 	if (!gpio_is_valid(template->gpio)) {
-		printk(KERN_INFO "Skipping unavailable LED gpio %d (%s)\n",
+		dev_info(parent, "Skipping unavailable LED gpio %d (%s)\n",
 				template->gpio, template->name);
 		return 0;
 	}