am c070bad4: Merge changes I672d4ee8,I6a2183b5,If0c0135e

* commit 'c070bad435799b4febdd2acf6be6c191f15f724e':
  usbaudio: allow compiling for 64-bit
  audio_remote_submix: allow compiling for 64-bit
  audio: allow compiling for 64-bit