Build:GauGuin-Board: Add GauGuin Board based on i.MX8MP build support

guowenxue

2024-05-06 435024a55a8a3f64af6ebeff596332aebd15b7e9

 bootloader/build.sh

@@ -92,6 +92,10 @@

        export FMW_IMX=firmware-imx-8.21

    elif [[ $BSP_VER =~ 5.15.71 ]] ;  then

        export FMW_IMX=firmware-imx-8.18

    fi

    export FMWS="$FMW_IMX"