leds: ktd2692: Drop calling dev_of_node() in ktd2692_parse_dt

output of dev_of_node() is already assigned to "np" variable in
ktd2692_parse_dt(). Use "np" variable to check if OF node is NULL
instead of calling dev_of_node() again.
Signed-off-by: NLad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: NPavel Machek <pavel@ucw.cz>

drivers/leds/flash/leds-ktd2692.c

@@ -274,7 +274,7 @@ static int ktd2692_parse_dt(struct ktd2692_context *led, struct device *dev,
 	struct device_node *child_node;
 	int ret;
 
-	if (!dev_of_node(dev))
+	if (!np)
 		return -ENXIO;
 
 	led->ctrl_gpio = devm_gpiod_get(dev, "ctrl", GPIOD_ASIS);