add wifi driver fetch in tarball build.sh

guowenxue

2021-12-18 e69555668c6cdb951763008624e6e90a63ddbdd6

 bsp/tarball/build.sh

@@ -54,6 +54,7 @@
        do_fetch_url uboot-imx-${IMX_BRANCH}.tar.xz
        do_fetch_url linux-imx-${IMX_BRANCH}.tar.xz
        do_fetch_url rootfs_${ROOTFS}.tar.bz2
        do_fetch_url rtl8188fu.tar.bz2
    else
        do_fetch_git uboot-imx
        do_fetch_git linux-imx