update bsp download address

guowenxue

2022-07-18 3d79f51902c03c07290b3a96f531f6a71f363c1f

 bsp/bootloader/igkboard.json

@@ -1,6 +1,6 @@
{
    "UBOOT_SRC": {
        "URL": "${SRC_URL}/bsp/uboot-imx-${BSP_VER}.tar.xz",
        "URL": "${BSP_URL}/uboot-imx.tar.xz",
        "PROTOCAL": "wget"
    },
    "INSTALL": {