usb: dwc3: 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>
Link: https://lore.kernel.org/r/20190723191704.67945-1-andriy.shevchenko@linux.intel.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/dwc3/core.c

@@ -813,8 +813,7 @@ static void dwc3_set_incr_burst_type(struct dwc3 *dwc)
 	 * result = 1, means INCRx burst mode supported.
 	 * result > 1, means undefined length burst mode supported.
 	 */
-	ntype = device_property_read_u32_array(dev,
-			"snps,incr-burst-type-adjustment", NULL, 0);
+	ntype = device_property_count_u32(dev, "snps,incr-burst-type-adjustment");
 	if (ntype <= 0)
 		return;