Bump wfb-ng submodule to upstream master (3504a38)

[mengelh]

Previous pin (0da5279, 2025-08-05) was about a year and 56 commits
behind svpcom/wfb-ng master. Verified the Aggregator/AggregatorUDPv4
constructor signature and the public counters WfbngLink.cpp reads
(count_p_all, count_p_dec_err, count_p_fec_recovered, count_p_lost,
count_p_bad, count_p_override, count_p_outgoing) are unchanged between
the two commits -- the diff in rx.cpp/rx.hpp is internal (packet dedup
via a new SeenPacketsSet, RSSI/SNR linear-scale averaging, an optional
PacketLossListener with no-op-by-default virtuals), not a breaking API
change.

Built and ran on-device (RTL8812AU, Galaxy Tab S7 FE) with no
regressions in video/MAVLink reception.

🤖 Generated with Claude Code

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PR Summary by Qodo

Update wfb-ng submodule to upstream commit 3504a38

⚙️ Configuration changes 🕐 10-20 Minutes

AI Description

• Advances bundled wfb-ng from 0da5279 to upstream commit 3504a38.
• Preserves existing aggregator constructors and telemetry counter integration.
• Includes on-device RTL8812AU validation for video and MAVLink reception.

Diagram

graph TD
  UP["wfb-ng 3504a38"] -->|compiled into| LIB["Native wfb-ng"] -->|Aggregator API| LINK["WfbngLink"] -->|video and MAVLink| UDP["UDP Receivers"]

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High-Level Assessment

Pinning the verified upstream commit is the appropriate approach: it preserves reproducible builds while incorporating the desired upstream fixes. Dynamically tracking master would reduce maintenance but make builds non-reproducible, while vendoring the source would duplicate upstream history and complicate future updates.

Files changed (1) +1 / -1

Other (1) +1 / -1

wfb-ngAdvance the wfb-ng submodule by 56 upstream commits +1/-1

Advance the wfb-ng submodule by 56 upstream commits

• Moves the wfb-ng gitlink from 0da5279 to 3504a38. The newer revision introduces internal receiver improvements while retaining the AggregatorUDPv4 constructor and public counters consumed by WfbngLink.

app/wfbngrtl8812/src/main/cpp/wfb-ng