Claude review: drm/tyr: Use vertical style for imports

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

Patch Review

I compared the old flat imports against the new grouped imports in each of the five files and confirmed they are equivalent — every symbol imported before is still imported after, with no additions or omissions.

The trailing `//` comments on last items within brace groups (e.g., `Mutex, //`) follow the kernel Rust convention to force `rustfmt` to preserve the vertical layout. This is the expected pattern.

> ```
> +use kernel::{
> +    bits::bit_u32,
> +    device::{
> +        Bound,
> +        Device, //
> +    },
> +    devres::Devres,
> +    io::Io,
> +    prelude::*, //
> +};
> ```

The v2 changelog says "Add import io::Io import in regs.rs to resolve conflict with v6.19." Looking at the diff, `io::Io` was already present in the old flat imports for `regs.rs`, so this change just refers to ensuring it wasn't accidentally dropped during the v1 conversion — the v2 result correctly includes it.

In `gem.rs`, the old code had `crate::` imports before `kernel::` imports, which didn't follow the conventional ordering. The new version places `kernel::` before `crate::`, which is an improvement beyond just the grouping style.

No issues found. This is a clean, mechanical style change with no functional impact.

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Generated by Claude Code Patch Reviewer