rt2x00:Add RT5372 chipset support

Signed-off-by: John Li <chen-yang.li@mediatek.com>
Acked-by: Gertjan van Wingerde <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 1906a94..65275ef 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -192,6 +192,7 @@
 #define RT3593		0x3593
 #define RT3883		0x3883	/* WSOC */
 #define RT5390		0x5390  /* 2.4GHz */
+#define RT5392		0x5392  /* 2.4GHz */
 
 	u16 rf;
 	u16 rev;