Makefile: revert unified codes of making binary output files
Makefile: revert unified codes of making binary output files

It is possible to get several types of binary output files like
hex and bin. So, let's revert a part of commit 9b36e2e.

Signed-off-by: sunghan-chang <c954e25285721d8faa8b1a5c1ae2ef5a35338d32@samsung.com>

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