Several changes were made to all LTS drm-kmod branches:
1. All branches were updated with Makefile cleanups and fixes.
2. The addition of the `DMA_BUF_IOCTL_EXPORT_SYNC_FILE` and
`DMA_BUF_IOCTL_IMPORT_SYNC_FILE` ioctls was backported to the 6.1 and
6.6 branches.
3. A couple fixes to amdgpu and i915 drivers were committed to the 6.12
branch.
The corresponding `graphics/nvidia-drm-*-kmod` ports were updated to
reference the latest `graphics/drm-*-kmod` ports.
Sponsored by: The FreeBSD Foundation
Jean-Sébastien Pédron
e50c876e29