Accumulate offload bytes written in logging

Test: play music and adb shell dumpsys media.audio_flinger
Bug: 31588484
Change-Id: Ic957c06ef27132be87ff56bb7b5e03ff5165cf01
1 file changed
tree: 6d1b0d310b224cb4b285f9a6516c2d3e7f6b54c8
  1. hal/
  2. legacy/
  3. post_proc/
  4. visualizer/
  5. voice_processing/
  6. Android.mk