libs/cbi: properly handle .default for dummy values
libs/cbi: properly handle .default for dummy values


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