build/config/artik053: fix nettest config
build/config/artik053: fix nettest config

fix nettest config to enable network manager

pillip8282/TizenRT,jeongchanKim/TizenRT,Samsung/TizenRT,pillip8282/TizenRT,Samsung/TizenRT,Samsung/TizenRT,junmin-kim/TizenRT,pillip8282/TizenRT,an4967/TizenRT,junmin-kim/TizenRT,an4967/TizenRT,sunghan-chang/TizenRT,pillip8282/TizenRT,jsdosa/TizenRT,jeongarmy/TizenRT,jsdosa/TizenRT,jeongchanKim/TizenRT,pillip8282/TizenRT,junmin-kim/TizenRT,jeongarmy/TizenRT,jeongchanKim/TizenRT,sunghan-chang/TizenRT,junmin-kim/TizenRT,an4967/TizenRT,jeongarmy/TizenRT,junmin-kim/TizenRT,jsdosa/TizenRT,an4967/TizenRT,pillip8282/TizenRT,junmin-kim/TizenRT,sunghan-chang/TizenRT,Samsung/TizenRT,jeongarmy/TizenRT,jeongchanKim/TizenRT,sunghan-chang/TizenRT,jeongchanKim/TizenRT,jsdosa/TizenRT,sunghan-chang/TizenRT,jeongchanKim/TizenRT,jsdosa/TizenRT,jeongarmy/TizenRT,pillip8282/TizenRT,Samsung/TizenRT,jeongarmy/TizenRT,Samsung/TizenRT,jsdosa/TizenRT,an4967/TizenRT,Samsung/TizenRT,junmin-kim/TizenRT,an4967/TizenRT,jeongarmy/TizenRT,sunghan-chang/TizenRT,sunghan-chang/TizenRT,jsdosa/TizenRT,jeongchanKim/TizenRT,an4967/TizenRT