am bf93daed: am cefbbac4: hal: update EC reference handling

* commit 'bf93daed8583c0f2deec915c6f55064845f905e4':
tree: 1d939cf2b5e16a6759c99927074da05916d38ce5
  1. hal/
  2. legacy/
  3. post_proc/
  4. visualizer/
  5. voice_processing/
  6. Android.mk