hal: add support to override volume gain to step mapping table

- if customer mapping is added in platform info file, use that
- in absence of customer table use default mapping

BUG 28897755
Change-Id: I4bf8bcf1913f16ad6298ff1f3fa5dd649c889b2a
7 files changed
tree: e763663a8d74fc9d84645a75230fd096a29260ce
  1. hal/
  2. legacy/
  3. msm8909/
  4. post_proc/
  5. visualizer/
  6. voice_processing/
  7. Android.mk