staging: emxx_udc: Replace __constant_cpu_to_le16 with cpu_to_le16

This fixes the following checkpatch.pl warning:
WARNING: __constant_cpu_to_le16 should be cpu_to_le16
Additionally, it removes the space between function name and (.
Signed-off-by: Roberta Dobrescu <roberta.dobrescu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/emxx_udc/emxx_udc.c

@@ -1404,13 +1404,13 @@ static void _nbu2ss_set_endpoint_stall(
 static struct usb_device_descriptor device_desc = {
 	.bLength              = sizeof(device_desc),
 	.bDescriptorType      = USB_DT_DEVICE,
-	.bcdUSB               = __constant_cpu_to_le16(0x0200),
+	.bcdUSB               = cpu_to_le16(0x0200),
 	.bDeviceClass         = USB_CLASS_VENDOR_SPEC,
 	.bDeviceSubClass      = 0x00,
 	.bDeviceProtocol      = 0x00,
 	.bMaxPacketSize0      = 64,
-	.idVendor             = __constant_cpu_to_le16 (0x0409),
-	.idProduct            = __constant_cpu_to_le16 (0xfff0),
+	.idVendor             = cpu_to_le16(0x0409),
+	.idProduct            = cpu_to_le16(0xfff0),
 	.bcdDevice            = 0xffff,
 	.iManufacturer        = 0x00,
 	.iProduct             = 0x00,