Claude review: drm/tyr: select DRM abstractions in Kconfig

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

Patch Review

**Author:** Boris Brezillon

Introduces `DRM_TYR_STATIC_DEPS` to ensure `DRM_GEM_SHMEM_HELPER` and `DRM_GPUVM` are built-in even when Tyr is `=m`. Also adds `MMU`, `IOMMU_SUPPORT`, and `IOMMU_IO_PGTABLE_LPAE` dependencies.

The ordering of `depends` and `select` is slightly unusual — conventionally all `depends on` lines come before `select` lines:

```
+	depends on MMU
+	select DRM_TYR_STATIC_DEPS
+	select IOMMU_IO_PGTABLE_LPAE
+	depends on IOMMU_SUPPORT
```

Having `depends on IOMMU_SUPPORT` after the `select` lines is a style nit — it works correctly, but grouping all `depends` together improves readability. Not a blocker.

The fix for `if` -> `If` capitalization is a nice bonus cleanup.

No functional issues.

---
Generated by Claude Code Patch Reviewer