|SUCCESS| net/mlx5: fix mini CQE compression format log

[dpdklab at iol.unh.edu]

Test-Label: ai-code-review
Test-Status: SUCCESS
https://dpdk.org/patch/171821

_AI Code Review_

=== Patch Review: series.patch (via Claude) ===
Review date: 2026-10-21

# DPDK Patch Review

## Patch Summary
This patch improves debug logging for mini CQE compression format in the mlx5 driver by logging both the configured format and the actually used format, and adds the Rx queue index to the log message.

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## ERRORS

None identified.

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## WARNINGS

None identified.

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## INFO

**Helpful diagnostic improvement**
The patch improves observability by logging both the configured mini CQE compression format (`priv->config.cqe_comp_fmt`) and the actually used format (`rxq_data->mcqe_format`), along with the Rx queue index. This is valuable for debugging when the used format differs from the configured one due to capability limitations or runtime adjustments.

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Review-Result: CLEAN