rt2x00: Add new RF chip defines

Add new defines for RF chipsets which can be found
by the driver. We don't have to check for these
chips specifically yet, but it is better to have
the defines in now.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt2800usb.h

@@ -36,6 +36,9 @@
  * RF2750 2.4G/5G 1T2R
  * RF3020 2.4G 1T1R
  * RF2020 2.4G B/G
+ * RF3021 2.4G 1T2R
+ * RF3022 2.4G 2T2R
+ * RF3052 2.4G 2T2R
  */
 #define RF2820				0x0001
 #define RF2850				0x0002
@@ -43,6 +46,9 @@
 #define RF2750				0x0004
 #define RF3020				0x0005
 #define RF2020				0x0006
+#define RF3021				0x0007
+#define RF3022				0x0008
+#define RF3052				0x0009
 
 /*
  * RT2870 version