Fix issue that tc_pthread_once fail when run tc repeatly
Fix issue that tc_pthread_once fail when run tc repeatly

g_once was not intialized when tc start.
Now g_once is initialized to PTHREAD_ONCE_INIT

junmin-kim/TizenRT,lokeshbv/TizenRT,davidfather/TizenRT,JeongJunSik/TizenRT,Parkjihooni6186/TizenRT,JeonginKim/TizenRT,pillip8282/TizenRT,JeonginKim/TizenRT,Samsung/TizenRT,Parkjihooni6186/TizenRT,chanijjani/TizenRT,lokeshbv/TizenRT,shivgarg/TizenRT,an4967/TizenRT,an4967/TizenRT,HONGCHAEHEE/TizenRT,JeonginKim/TizenRT,btheosam/TizenRT,shivgarg/TizenRT,jsdosa/TizenRT,sunghan-chang/TizenRT,davidfather/TizenRT,jeongarmy/TizenRT,sunghan-chang/TizenRT,pillip8282/TizenRT,an4967/TizenRT,pillip8282/TizenRT,heejin-kim/TizenRT,jeongarmy/TizenRT,jeongarmy/TizenRT,an4967/TizenRT,HONGCHAEHEE/TizenRT,shivgarg/TizenRT,pillip8282/TizenRT,yashwanth686007/TizenRTOS,JeonginKim/TizenRT,shivgarg/TizenRT,sangwon03/TizenRT,davidfather/TizenRT,sunghan-chang/TizenRT,davidfather/TizenRT,btheosam/TizenRT,JeongJunSik/TizenRT,HONGCHAEHEE/TizenRT,junmin-kim/TizenRT,junmin-kim/TizenRT,davidfather/TizenRT,yashwanth686007/TizenRTOS,davidfather/TizenRT,btheosam/TizenRT,HONGCHAEHEE/TizenRT,sunghan-chang/TizenRT,JeongJunSik/TizenRT,pillip8282/TizenRT,lokeshbv/TizenRT,jeongarmy/TizenRT,jsdosa/TizenRT,jeongarmy/TizenRT,heejin-kim/TizenRT,jsdosa/TizenRT,Samsung/TizenRT,chanijjani/TizenRT,pillip8282/TizenRT,chanijjani/TizenRT,Parkjihooni6186/TizenRT,jsdosa/TizenRT,lokeshbv/TizenRT,lokeshbv/TizenRT,jeongarmy/TizenRT,chanijjani/TizenRT,Samsung/TizenRT,JeongJunSik/TizenRT,heejin-kim/TizenRT,chanijjani/TizenRT,davidfather/TizenRT,JeongJunSik/TizenRT,heejin-kim/TizenRT,chanijjani/TizenRT,junmin-kim/TizenRT,Parkjihooni6186/TizenRT,sangwon03/TizenRT,jeongchanKim/TizenRT,jsdosa/TizenRT,sunghan-chang/TizenRT,btheosam/TizenRT,shivgarg/TizenRT,sunghan-chang/TizenRT,jeongarmy/TizenRT,Samsung/TizenRT,JeonginKim/TizenRT,HONGCHAEHEE/TizenRT,junmin-kim/TizenRT,yashwanth686007/TizenRTOS,junmin-kim/TizenRT,an4967/TizenRT,btheosam/TizenRT,heejin-kim/TizenRT,jsdosa/TizenRT,JeonginKim/TizenRT,yashwanth686007/TizenRTOS,junmin-kim/TizenRT,yashwanth686007/TizenRTOS,jsdosa/TizenRT,JeongJunSik/TizenRT,jeongchanKim/TizenRT,shivgarg/TizenRT,Samsung/TizenRT,sangwon03/TizenRT,lokeshbv/TizenRT,sangwon03/TizenRT,jeongchanKim/TizenRT,sunghan-chang/TizenRT,an4967/TizenRT,Samsung/TizenRT,chanijjani/TizenRT,jeongchanKim/TizenRT,heejin-kim/TizenRT,an4967/TizenRT,Samsung/TizenRT,sangwon03/TizenRT,jeongchanKim/TizenRT,btheosam/TizenRT,pillip8282/TizenRT,sangwon03/TizenRT,HONGCHAEHEE/TizenRT,yashwanth686007/TizenRTOS,Parkjihooni6186/TizenRT,jeongchanKim/TizenRT,Parkjihooni6186/TizenRT,jeongchanKim/TizenRT