alsa-mixer: add support for SteelSeries Arctis 9
Add support for SteelSeries Arctis 9 similar to Arctis 7 as tested by reporter in #1091 (closed)
Fixes #1091 (closed)
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Add support for SteelSeries Arctis 9 similar to Arctis 7 as tested by reporter in #1091 (closed)
Fixes #1091 (closed)