arch/s5j: Remove unnecessary watchdog menu on Kconfig
arch/s5j: Remove unnecessary watchdog menu on Kconfig

Those configs are not enough important to make a menu. Let's remove it.

junmin-kim/TizenRT,an4967/TizenRT,btheosam/TizenRT,jeongchanKim/TizenRT,jsdosa/TizenRT,jeongarmy/TizenRT,heejin-kim/TizenRT,pillip8282/TizenRT,JeongJunSik/TizenRT,jeongchanKim/TizenRT,shivgarg/TizenRT,chanijjani/TizenRT,junmin-kim/TizenRT,heejin-kim/TizenRT,chanijjani/TizenRT,heejin-kim/TizenRT,davidfather/TizenRT,jsdosa/TizenRT,jsdosa/TizenRT,Samsung/TizenRT,chanijjani/TizenRT,btheosam/TizenRT,btheosam/TizenRT,JeongJunSik/TizenRT,an4967/TizenRT,davidfather/TizenRT,junmin-kim/TizenRT,btheosam/TizenRT,junmin-kim/TizenRT,an4967/TizenRT,pillip8282/TizenRT,pillip8282/TizenRT,HONGCHAEHEE/TizenRT,lokeshbv/TizenRT,sunghan-chang/TizenRT,JeonginKim/TizenRT,pillip8282/TizenRT,Samsung/TizenRT,chanijjani/TizenRT,HONGCHAEHEE/TizenRT,JeongJunSik/TizenRT,JeonginKim/TizenRT,jeongchanKim/TizenRT,chanijjani/TizenRT,JeonginKim/TizenRT,shivgarg/TizenRT,jeongchanKim/TizenRT,heejin-kim/TizenRT,JeonginKim/TizenRT,Samsung/TizenRT,shivgarg/TizenRT,HONGCHAEHEE/TizenRT,sunghan-chang/TizenRT,pillip8282/TizenRT,sunghan-chang/TizenRT,an4967/TizenRT,HONGCHAEHEE/TizenRT,jeongarmy/TizenRT,heejin-kim/TizenRT,shivgarg/TizenRT,JeongJunSik/TizenRT,sunghan-chang/TizenRT,chanijjani/TizenRT,davidfather/TizenRT,jsdosa/TizenRT,an4967/TizenRT,jeongarmy/TizenRT,shivgarg/TizenRT,davidfather/TizenRT,an4967/TizenRT,HONGCHAEHEE/TizenRT,jeongchanKim/TizenRT,btheosam/TizenRT,jsdosa/TizenRT,shivgarg/TizenRT,lokeshbv/TizenRT,Samsung/TizenRT,junmin-kim/TizenRT,sunghan-chang/TizenRT,davidfather/TizenRT,Samsung/TizenRT,davidfather/TizenRT,lokeshbv/TizenRT,jsdosa/TizenRT,davidfather/TizenRT,btheosam/TizenRT,jeongarmy/TizenRT,lokeshbv/TizenRT,sunghan-chang/TizenRT,JeongJunSik/TizenRT,jeongarmy/TizenRT,JeonginKim/TizenRT,lokeshbv/TizenRT,jeongarmy/TizenRT,jeongchanKim/TizenRT,chanijjani/TizenRT,JeonginKim/TizenRT,jsdosa/TizenRT,JeongJunSik/TizenRT,jeongchanKim/TizenRT,Samsung/TizenRT,sunghan-chang/TizenRT,Samsung/TizenRT,HONGCHAEHEE/TizenRT,pillip8282/TizenRT,junmin-kim/TizenRT,heejin-kim/TizenRT,lokeshbv/TizenRT,pillip8282/TizenRT,jeongarmy/TizenRT,an4967/TizenRT,junmin-kim/TizenRT