Claude review: dt-bindings: display: panel-lvds: Add dual-channel LVDS support

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

Patch Review

This is the most significant binding change. It modifies the `required:` section:

```yaml
-  - port
+
+oneOf:
+  - required:
+      - port
+  - required:
+      - ports
+
+if:
+  required:
+    - ports
+then:
+  $ref: /schemas/display/lvds-dual-ports.yaml#
```

This is architecturally correct — panels should support either single `port` or dual `ports`. The `if/then` conditional reference to `lvds-dual-ports.yaml` is the right mechanism.

**Ordering concern**: This patch (13/15) adds the dual-channel support, but Patch 15 already depends on it. The series ordering has these at 13 and 15, which is correct for application order. However, this binding patch should ideally come before any DTS that uses `ports` (Patch 15 is the only one), so the ordering is fine.

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