|SUCCESS| mailmap: update contributor name

[dpdklab at iol.unh.edu]

Test-Label: ai-code-review
Test-Status: SUCCESS
https://dpdk.org/patch/170042

_AI Code Review_

=== Patch Review: series.patch (via Claude) ===
Review date: 2026-09-27

# DPDK Patch Review

## Summary
This patch updates the `.mailmap` file to change the primary name mapping for a contributor. The patch is clean with no code changes, only a single line moved to maintain alphabetical order.

## Findings

**No issues found.**

This is a pure administrative change to the mailmap file. The patch:
- Moves one line from position 1683 to position 1983
- Maintains alphabetical ordering (the "Zhang Tengfei" entry is now correctly placed after "Zerun Fu" and before "Zhangfei Gao")
- Does not modify any code, API, or documentation
- Does not introduce any correctness issues, style violations, or guideline violations

The patch is acceptable as-is.