* Backport fixes from hg tip (no API/ABI changes):
  - fix_sem_deadlock_in_dmix.patch (LP: #190059),
  - fix_const_casts.patch,
  - fix_ioplug.patch,
  - fix_control_range.patch,
  - dont_use_hackish_callback_in_rate_plugin.patch,
  - fix_cpu_hog_in_rate_plug.patch,
  - fix_mmap_with_multi_plug.patch,
  - fix_wrong_return_values_in_direct_plug.patch,
  - fix_timestamp_in_status_pcm_direct_plug.patch,
  - fix_configs_error_handling.patch,
  - fix_not_updated_bit_set.patch,
  - fix_device_assignment.patch,
  - fix_missing_aliases.patch.