Not wired up (not referenced in any SUBDIR), leading to `make distcheck'
failure.
Fixes: d77fa310ed8 "ilo: EOL drop unmaintained gallium drv from buildsys"
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
src/gallium/winsys/imx/drm/Makefile
src/gallium/winsys/freedreno/drm/Makefile
src/gallium/winsys/i915/drm/Makefile
- src/gallium/winsys/intel/drm/Makefile
src/gallium/winsys/nouveau/drm/Makefile
src/gallium/winsys/radeon/drm/Makefile
src/gallium/winsys/amdgpu/drm/Makefile