reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/frank.li/linux.git/commit/?id=3147e56028a4e7afff47ffd77e99178e7fe113f0
        git remote add frank-li https://git.kernel.org/pub/scm/linux/kernel/git/frank.li/linux.git
        git fetch --no-tags frank-li imx/dt64
        git checkout 3147e56028a4e7afff47ffd77e99178e7fe113f0

        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests

        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-8.5.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-8.5.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash dt_binding_check dtbs_check