Claude review: dt-bindings: display: Add Synaptics R63455 panel support

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

Patch Review

**Concept**: DT binding for a dual-panel VR display driven by Synaptics R63455 controllers.

**Issues:**

1. **YAML schema error in `ports`**: The line:
   ```yaml
   ports: $ref: /schemas/graph.yaml#/properties/ports
   ```
   This is incorrect YAML syntax. It should be:
   ```yaml
   ports:
     $ref: /schemas/graph.yaml#/properties/ports
   ```

2. **Non-standard supply naming**: Using `left-pos-supply`, `right-neg-supply`, etc. is unusual. DT bindings typically use generic supply names or names derived from the chip's pin names (e.g., `vpos-left-supply`). The `left-`/`right-` prefix convention isn't established in existing bindings. DT maintainers may push back on this.

3. **Missing port definitions**: The `ports` property references the graph schema but doesn't define `port@0` and `port@1` with their own descriptions within the schema, so the binding doesn't actually constrain or document which ports exist.

4. **Example has syntax issues**: The example DT uses `&mdss_dsi0 { ... }` overlay syntax with missing closing braces. The `};` for the `panel@0` node appears to close at the wrong level (the `};` on line 972 closes the ports node, but the panel node itself is not properly closed before `&mdss_dsi0_out`). This would fail `dt_binding_check`.

5. **`data-lanes` in example**: The example shows `data-lanes = <0 1 2>;` (3 lanes), which matches the panel driver, but this property isn't defined in the binding schema itself.

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