Claude review: drm/panel: r61307/r69328: convert to devm_mipi_dsi_attach

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

Patch Review

Replaces `mipi_dsi_attach()` / manual `mipi_dsi_detach()` with `devm_mipi_dsi_attach()`. The manual detach in `remove()` is deleted.

Ordering is correct: the `remove()` callback (which calls `drm_panel_remove()`) executes before devm cleanup (which calls `mipi_dsi_detach()`), maintaining the same order as the original code. This is the standard pattern used by many panel drivers (e.g., panel-samsung-ams581vf01, panel-magnachip-d53e6ea8966, panel-lg-ld070wx3).

No regressions.

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FINAL REGRESSIONS FOUND: 0

False positives eliminated:
- `drm_connector_helper_get_modes_fixed` returning 0 vs -ENOMEM: framework clamps negative returns to 0 in `drm_panel_get_modes()`
- Double-OR of `DRM_MODE_TYPE_PREFERRED`: idempotent bit operation
- devm cleanup ordering: `remove()` runs before devm teardown, preserving correct order
- DT property rename breaking users: no in-tree DTS files use either name

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`review-metadata.json` content (could not write due to permissions):

```json
{
  "author": "Svyatoslav Ryhel <clamor95@gmail.com>",
  "sha": "c0c75a7fd8740..5d718d96a1186",
  "subject": "drm/panel: r61307/r69328: modernization series",
  "AI-authorship-score": "low",
  "AI-authorship-explanation": "Mechanical driver cleanup by a known panel driver contributor, following standard kernel modernization patterns with terse commit messages.",
  "issues-found": 0,
  "issue-severity-score": "low",
  "issue-severity-explanation": "none"
}
```

FINAL TOKENS USED: ~45000 (estimated)

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