rnnoise-0.git20210122.1cbdbcf-bp156.2.4

- Add upstream patch to fix build:
  * 372f7b4.patch

- update to 0.2:
  * many improvements, including improved training, SSE4.1 and AVX2
    optimizations, and run-time CPU detection (RTCD).
  * The distributed models are now trained using only publicly
    available datasets

- Update to version 0.git20210312.7f449bf:
  * Add link to paper and demo to the README
  * Correct #endif in rnn.h.
  * Document the API
  * Add rnnoise_get_frame_size()
  * Drop unused arguments from README (#103)
  * fix inclusion of rnnoise.h into C++ code
  * Document in the README the authorative source for the code.
  * docs: fix simple typo, delares -> declares
  * rename TRAINING -> TRAINING-README for case insensitive file system
  * Update celt_lpc.c

- Update to version 0.git20210122.1cbdbcf:
  * Drop unused arguments from README (#103)
  * docs: fix simple typo, delares -> declares
  * rename TRAINING -> TRAINING-README for case insensitive file system
  * Access files in binary mode

- initial package