[Sound-open-firmware] Machine driver for pcm512x

[Pierre-Louis Bossart]

> I'm looking at sof-apl-pcm512x-nohdmi.m4 scenario in SOF (I choose this
> because it looks to be the simplest scenario that also involves a
> codec). But I couldn't find the machine driver corresponding to this
> in Linux kernel code.

The machine driver is not upstream, I haven't taken the time to clean it 
up, so it's only in the SOF tree, see
sound/soc/intel/boards/bxt_pcm512x.c