Intermediate update:

- kernel module improvements:
  - fix multiple issues with device memory mappings;
  - add low level driver tests;
  - add loopback mode;
- get rid of communication area address hardcoded in the DSP side API
  implementation for fast simulation;
- update license information, device tree bindings and README.

Intermediate XRP release:

- multi-DSP support;
- per-DSP firmware image;
- no hardcoded communication area address in the firmware image, communicated
  from host by fixing up ELF symbol in the firmware image;
- initial fast simulation mode support;
- MW-MP example.

Intermediate API/implementation update:

- device, queue, buffer, buffer group, queuing APIs are updated;
- native linux implementation is done:
  - user part is rather clean;
  - kernel code needs to get rid of XVP heritage and clean up kernel/DSP
    interface some more;
  - DSP part needs more configurability/kernel/DSP interface cleanup;
  - only synchronous queue, async queuing may be done in userspace;
- simple tests.