Claude review: dt-bindings: misc: qcom, fastrpc: Add compatible for Glymur

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

Patch Review

Converts the fastrpc compatible from a simple `enum` to `oneOf` to support `qcom,glymur-fastrpc` with `qcom,kaanapali-fastrpc` fallback:

```yaml
    oneOf:
      - enum:
          - qcom,kaanapali-fastrpc
          - qcom,fastrpc
      - items:
          - enum:
              - qcom,glymur-fastrpc
          - const: qcom,kaanapali-fastrpc
```

The restructuring is correct. The existing single-string compatibles are preserved in the `enum` branch, and the new two-string compatible is added as an `items` branch. Has Reviewed-by from Krzysztof Kozlowski.

**Minor observation**: The `enum` wrapping `qcom,glymur-fastrpc` is technically unnecessary when there's only one entry — a bare `const: qcom,glymur-fastrpc` would suffice. However, using `enum` is a common DT-binding convention that allows for easy future additions, so this is acceptable style.

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