Claude review: dt-bindings: display: rockchip: analogix-dp: Expose inherited properties

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

Patch Review

**Status: Looks correct.**

This patch adds `true` declarations for properties inherited from the base `analogix,dp.yaml` schema to satisfy `unevaluatedProperties: false` in the Rockchip binding file. The properties exposed (`reg`, `interrupts`, `phys`, `phy-names`, `force-hpd`, `ports`) all exist in the parent schema and are already used in the example DT node at the bottom of the file (e.g., `reg`, `interrupts`, `phys`, `phy-names`).

```yaml
+  reg: true
+  interrupts: true
+  phys: true
+  phy-names: true
+  force-hpd: true
+  ports: true
```

This is a straightforward schema fix. It's technically a prerequisite for the series (since patch 2 modifies the parent schema), but it's also a valid standalone fix — these properties should have been listed already given the `unevaluatedProperties: false` constraint.

No issues.

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