USB-Audio: Add support of HyperX SoloCast (USB ID 03f0:0b8b)

USB-Audio: Add support of HyperX SoloCast (USB ID 03f0:0b8b)

Support of
- volume control
- un/mute control

PS: About un/mute control - only from PC to Mic, vise versa does not work - like when you
un/mute Mic on PC it works as expected (even LED show actual status) but when you click
button on Mic side it does not reflect on PC side.

Closes: https://github.com/alsa-project/alsa-ucm-conf/pull/545
Signed-off-by: "serhii.n" <serhii.n@thescimus.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>