extcon: arizona: Switch to use device_property_count_u32()

Use use device_property_count_u32() directly, that makes code neater.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

drivers/extcon/extcon-arizona.c

@@ -1253,7 +1253,7 @@ static int arizona_extcon_get_micd_configs(struct device *dev,
 	int i, j;
 	u32 *vals;
 
-	nconfs = device_property_read_u32_array(arizona->dev, prop, NULL, 0);
+	nconfs = device_property_count_u32(arizona->dev, prop);
 	if (nconfs <= 0)
 		return 0;