kernel: modules: video: drm: remove DRM_EXEC and DRM_SUBALLOC_HELPER
As part of adding kernel 6.6 support, DRM_EXEC and DRM_SUBALLOC_HELPER were
added to the kmod-drm, however these are only used by drm-amdgpu and
drm-radeon which are only supported on x86.
So, lets start fixing building of other targets by removing these from the
main kmod-drm, in follow-up commits they will be packaged separately and
selected when required.
Fixes: 5b08b5600720 ("kernel: modules: video: adapt for kernel 6.6")
Signed-off-by: Robert Marko <robimarko@gmail.com>