ralink: rt3883: disable the 2GHz band on the RT-N56U

SVN-Revision: 30632

target/linux/ramips/files/arch/mips/ralink/rt3883/mach-rt-n56u.c

@@ -137,6 +137,7 @@ static void __init rt_n56u_init(void)
 
 	platform_device_register(&rt_n56u_rtl8367_device);
 
+	rt3883_wlan_data.disable_2ghz = 1;
 	rt3883_register_wlan();
 
 	rt3883_eth_data.speed = SPEED_1000;