Fix support for sof-essx8336

[GitHub pull_request - opened]

alsa-project/alsa-ucm-conf pull request #144 was opened from mchehab:

There are a couple of issues at the support for sof-essx8336, causing it to fail working.

This PR fix them. Tested on Huawei Matebook D15. Before the fix, the device was appearing as "sysdefault:0" instead of "hw:0", and there were several other problems.

 After the fix:
- the device is now identified as hw:0;
- calling alsamixer without `-Dsysdefault:0` (or `-Dhw:0`) now shows a mixer (instead of showing nothing);
- The HDMI volume controls now appear;
- Using `alsaucm load` now works fine.

There are still a couple of things to be fixed, but I suspect that at least some of them would require firmware (or driver?) changes:
- the internal microphone is not working yet;
- the headphone/headset doesn't work.

Request URL   : https://github.com/alsa-project/alsa-ucm-conf/pull/144
Patch URL     : https://github.com/alsa-project/alsa-ucm-conf/pull/144.patch
Repository URL: https://github.com/alsa-project/alsa-ucm-conf