gpio: zynq: Remove empty line

Trivial coding style fix.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/drivers/gpio/zynq_gpio.c b/drivers/gpio/zynq_gpio.c
index 8a448c9..64579a1 100644
--- a/drivers/gpio/zynq_gpio.c
+++ b/drivers/gpio/zynq_gpio.c
@@ -325,7 +325,6 @@
 	.get_value		= zynq_gpio_get_value,
 	.set_value		= zynq_gpio_set_value,
 	.get_function		= zynq_gpio_get_function,
-
 };
 
 static const struct udevice_id zynq_gpio_ids[] = {