reproduce (this is a W=1 build):
        # https://github.com/Freescale/linux-fslc/commit/dcc7dc895c2b1880da843c82b41c0ed26c5c5756
        git remote add freescale-fslc https://github.com/Freescale/linux-fslc
        git fetch --no-tags freescale-fslc 6.6-2.1.x-imx
        git checkout dcc7dc895c2b1880da843c82b41c0ed26c5c5756
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 olddefconfig
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/gpu/drm/ drivers/vhost/ drivers/video/fbdev/