gpio: gpio-dln2: Added a Blank line after declaration

Fix the coding style issue by adding a blank line after declaration
Signed-off-by: Mohammad Jamal <md.jamalmohiuddin@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-dln2.c

@@ -400,6 +400,7 @@ static void dln2_gpio_event(struct platform_device *pdev, u16 echo,
 			    const void *data, int len)
 {
 	int pin, irq;
+
 	const struct {
 		__le16 count;
 		__u8 type;