rt2x00: Move interface type assignments to generic code.

Make sure all drivers can benefit of the assignment of the interface
type of an adapter, instead of keeping it for rt2800 only.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.c b/drivers/net/wireless/rt2x00/rt2x00usb.c
index c9cbdaa..aa6c31d6 100644
--- a/drivers/net/wireless/rt2x00/rt2x00usb.c
+++ b/drivers/net/wireless/rt2x00/rt2x00usb.c
@@ -653,6 +653,8 @@
 	rt2x00dev->ops = ops;
 	rt2x00dev->hw = hw;
 
+	rt2x00_set_chip_intf(rt2x00dev, RT2X00_CHIP_INTF_USB);
+
 	retval = rt2x00usb_alloc_reg(rt2x00dev);
 	if (retval)
 		goto exit_free_device;