graphics/drm-devel-kmod: Update snapshot

Update graphics/drm-devel-kmod to the latest snapshot.
This fixes the build on latest current.
Make unsynchronized DRM_IOCTL_I915_GEM_USERPTR work in mesa on 7th
generation Haswell graphics. This is needed for vulkan
Add devctl (devd) notification for monitor hotplug
Remove support for older FreeBSD versions and bump the minimum version
requirements to FreeBSD 1300055.