rt2x00: Properly detect Ralink RT3070 devices.

Allow rt2800usb to properly detect RT307X based devices, and set the appropriate chipset values.

Signed-off-by: Gertjan van Wingede <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 5a1b161..62da572 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -172,6 +172,7 @@
 #define RT3052		0x3052	/* WSOC */
 #define RT3090		0x3090	/* 2.4GHz PCIe */
 #define RT2870		0x1600
+#define RT3070		0x1800
 
 	u16 rf;
 	u32 rev;