add wifi driver fetch in tarball build.sh

guowenxue

2021-12-18 e69555668c6cdb951763008624e6e90a63ddbdd6

 tools/buildroot/buildroot.sh

@@ -66,6 +66,7 @@
    cd $BR_VER

    cp tarballs/buildroot/$BR_CONF .config
    cp tarballs/busybox/busybox.config package/busybox/
    sed -i "s|^BR2_HOST_DIR=.*|BR2_HOST_DIR=\"${INST_PATH}\"|g" .config

    cd -