rename gpio.c to gpiod.c for it will conflict with rpi gpio command

guowenxue

2021-11-03 f696e95a01ee103605a9ed5fd23de58847ab9abc

 3rdparty/local/build.sh

@@ -31,6 +31,8 @@
            rm -rf ${dir}/${dir}*
        fi
    done

    rm -rf install
}

if [[ $# == 1 ]] && [[ $1 == "clean" ]] ; then