build: introduce $(SDK) to test whether we run a target build or the sdk
build: introduce $(SDK) to test whether we run a target build or the sdk


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