Add support for ALSA compressed offload

See https://docs.kernel.org/sound/designs/compress-offload.html.

This has been tested on Dragonboard 845c/RB3 platform.

Yocto layer, used for deploying this, is here.

Keeping this in draft as it is currently dependent on an open MR in tinycompress. EDIT: Removed this dependency for now.

Will raise an MR for two minor changes in Wireplumber later, once this gets finalized.