Claude review: dt-bindings: display: bridge: Add ITE IT6162 MIPI DSI to HDMI bridge

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Patch Review

**Issues:**

1. **Typo in v2 changelog**: The cover letter says `"ite,spport-hdcp"` (line 440) instead of `"ite,support-hdcp"`. Minor but worth fixing for consistency.

2. **Vendor-specific boolean property naming**: The property `ite,support-hdcp` is a policy/configuration knob, not a hardware description. DT bindings should describe hardware capabilities, not software policy. If the hardware has HDCP key storage wired up, a property like `ite,hdcp-supported` would be more appropriate, but even then reviewers may push back — typically HDCP enablement is handled in userspace through the content_protection connector property. Consider whether this really belongs in DT.

3. **Missing newline at end of file** (line 328: `\ No newline at end of file`). The YAML file should end with a newline.

4. **Port numbering and required ports**: Only `port@1` (DSI-1) is required, but the driver code iterates ports 0 and 1, and the cover letter says single DSI uses one port. It seems like `port@1` being the only mandatory port is unusual — typically `port@0` would be required for single-DSI configurations. The comment `# Only DSI-1 port is mandatory per your request` (line 253) should be removed or rephrased.

5. **`lane-polarities` redefines existing schema**: The `lane-polarities` property is already defined in `video-interfaces.yaml`. Redefining its `$ref` to `types.yaml#/definitions/uint32-array` with custom constraints may conflict. Consider just using the standard property without overriding its type.

6. **HDMI output port marked optional**: `port@3` (HDMI output) is described as "optional" but for a DSI-to-HDMI bridge, the HDMI output port should arguably be required.

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