leds: ns2: Slightly simplify a memory allocation

Use devm_kcalloc() instead of devm_kzalloc()+array_size().
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/560b8f140c19a7da40f5e9540c3ef312969b0dc4.1690057595.git.christophe.jaillet@wanadoo.frSigned-off-by: Lee Jones <lee@kernel.org>

drivers/leds/leds-ns2.c

@@ -247,7 +247,7 @@ static int ns2_led_probe(struct platform_device *pdev)
 	if (!count)
 		return -ENODEV;
 
-	leds = devm_kzalloc(dev, array_size(sizeof(*leds), count), GFP_KERNEL);
+	leds = devm_kcalloc(dev, count, sizeof(*leds), GFP_KERNEL);
 	if (!leds)
 		return -ENOMEM;