Claude review: rust: drm: dispatch delayed work items to the private data

[Claude Code Review Bot <claude-review@example.com>]

Patch Review

Another small patch adding `HasDelayedWork` for `Device<T>`:

```rust
unsafe impl<T, const ID: u64> HasDelayedWork<Device<T>, ID> for Device<T>
where
    T: drm::Driver,
    T::Data: HasDelayedWork<Device<T>, ID>,
{
}
```

`HasDelayedWork` is a marker trait (no methods) that inherits from `HasWork`, so this is just declaring that the delayed work guarantee is satisfied. Since it requires `T::Data: HasDelayedWork<Device<T>, ID>`, the guarantee flows from the driver's data type. Correct.

**One note:** This patch adds the `HasDelayedWork` import but does not add a corresponding `WorkItem` impl for the delayed case. This is fine because the same `WorkItem` impl from Patch 2 covers both regular and delayed work — `RawDelayedWorkItem` just extends `RawWorkItem`, and the `WorkItemPointer::run` function is shared.

Overall, this is a clean, well-reviewed series. No correctness issues found.

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Generated by Claude Code Patch Reviewer