Input: USB devices - switch to using input_dev->dev.parent

In preparation for struct class_device -> struct device input
core conversion, switch to using input_dev->dev.parent when
specifying device position in sysfs tree.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/usb/input/appletouch.c b/drivers/usb/input/appletouch.c
index ef6166a..e321526 100644
--- a/drivers/usb/input/appletouch.c
+++ b/drivers/usb/input/appletouch.c
@@ -584,7 +584,7 @@
 	input_dev->name = "appletouch";
 	input_dev->phys = dev->phys;
 	usb_to_input_id(dev->udev, &input_dev->id);
-	input_dev->cdev.dev = &iface->dev;
+	input_dev->dev.parent = &iface->dev;
 
 	input_set_drvdata(input_dev, dev);