Claude review: drm/vkms: Constify struct configfs_item_operations and configfs_group_operations

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

Patch Review

**Status: Clean**

The patch adds `const` to 13 structure definitions across `drivers/gpu/drm/vkms/vkms_configfs.c`:

- 8 `configfs_item_operations` instances: `crtc_item_operations`, `plane_possible_crtcs_item_operations`, `plane_item_operations`, `encoder_possible_crtcs_item_operations`, `encoder_item_operations`, `connector_item_operations`, `connector_possible_encoders_item_operations`, `device_item_operations`
- 5 `configfs_group_operations` instances: `crtcs_group_operations`, `planes_group_operations`, `encoders_group_operations`, `connectors_group_operations`, `device_group_ops`

All of these are statically initialized with function pointers and never modified after initialization, making `const` appropriate. The parent `config_item_type` struct stores these via `const` pointers, so no cast or type mismatch is introduced.

The size data in the commit message is consistent: `text` increases by 992 bytes, `data` decreases by 992 bytes, and the total (`dec`) stays at 31778, confirming the structures moved from `.data` to `.rodata` as expected.

No correctness, style, or completeness issues.

**Reviewed-by: appropriate.**

---
Generated by Claude Code Patch Reviewer