libs/sys: fix luci.sys.wifi.channels()
libs/sys: fix luci.sys.wifi.channels()


deepak78/luci,8devices/luci,deepak78/luci,8devices/luci,8devices/luci,8devices/luci,deepak78/luci,deepak78/luci,8devices/luci,8devices/luci,deepak78/luci,deepak78/luci,deepak78/luci,deepak78/luci