framework/wifi_manager: wifi_manager bug fix
framework/wifi_manager: wifi_manager bug fix

- Add logic to ensure callback for scannig (scan_ap_done) is declared
- Handling ENT_DEINIT in RECONNECTED state
- Add logic to ensure wifi_manager_info_s is not null when it is called

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