add BOARD_PROFILE and YS_DIR variables in yac script because /etc/environment cannot work when 'yac boot' is called from /etc/rc.local at booting time
add BOARD_PROFILE and YS_DIR variables in yac script because /etc/environment cannot work when 'yac boot' is called from /etc/rc.local at booting time

yagamy4680/yapps-scripts,yagamy4680/yapps-scripts