examples/mediarecorder: Refine playback logic
examples/mediarecorder: Refine playback logic

Remove loop in play_data(), unprepare & destroy mediaplayer
in onPlaybackFinished().

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