libs/cbi: Make sure options in ListValues are unique
libs/cbi: Make sure options in ListValues are unique

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