update buildroot build shell script

guowenxue

2021-11-12 a8f25dfffb667b268004f88309be0f7d2f06c1a5

update buildroot build shell script

 tools/lintools/buildroot/buildroot.sh

@@ -112,7 +112,10 @@
        exit ;
    fi

    echo ""
    echo ""
    echo " Switch work space to \"$WORK_SPACE\" " 
    echo ""
    mkdir -p $WORK_SPACE 
    cd $WORK_SPACE
}