Claude review: dt-bindings:bridge: Add Lontiun LT7911EXC eDP to MIPI DSI bridge

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

Patch Review

**Port descriptions are swapped.** The binding declares:
```yaml
port@0:
  description: Video port for MIPI DSI output.
port@1:
  description: Video port for eDP input.
```

But the example has:
```yaml
port@0:
  bridge_in: endpoint {
    remote-endpoint = <&edp_out>;
  };
port@1:
  bridge_out: endpoint {
    remote-endpoint = <&panel_in>;
  };
```

The endpoint label `bridge_in` connecting to `edp_out` at port@0 indicates port@0 is the eDP **input**, and `bridge_out` connecting to `panel_in` at port@1 indicates port@1 is the MIPI DSI **output**. The driver confirms this — it calls `devm_drm_of_get_bridge(dev, dev->of_node, 1, 0)` on port@1 to get the downstream (output) bridge. The descriptions for port@0 and port@1 should be swapped.

**Missing `description` at the top level** of the schema (under `title:`). While not strictly required, it is conventional.

**Typo in the series subject**: "Lontiun" should be "Lontium" (appears in subject line and cover letter).

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