DEV9: DNS Logger Crash fix #4940
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Description of Changes
Access the correct array for additional information when logging DNS packets
Rationale behind Changes
Was previously logging the wrong information for additional information.
If the DNS server does not include additional information, but did provide authorities information a crash would occur.
This wasn't picked up before as DNS logging is disabled by default.
Suggested Testing Steps
Set EthLogDNS to 1 in DEV9.cfg
Connect to an online server (via a online multiplayer game, or with the Network access disc)
Christian's DNS server (45.7.228.197) would crash the DNS logger in master, but gets logged correctly in this PR