build : make a build in one step for continuous integration

We make a build in one step for continuous integration.

usage)
    1. $>source platform-device/<platfor_name>/build/<guest_type>.sh

	2. run make command, as below!!

    $>make  #full build
    $>make clean #full clean
    $>make hypervisor #hypervisor build
    $>make hypervisorclean #hypervisor clean
    $>make guest #guest build
    $>make guestclean #guest clean