os/tools/build_test.sh : Add error check when build fail
os/tools/build_test.sh : Add error check when build fail

Current build script tries to build many configurations automatically.
But when there is a fail, build is not stopped and continue to the next.
So when there is a fail, stop the build and show where the build error is come from.

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