post_proc: release vol listener object based on context

Releasing volume listener object based on session_id and
stream type is not accurate, which results into false free
and dangling pointer. Release volume listener object based
on context.

Bug: 123583662
Test: manual
Change-Id: I335d064059f1b3e951567af2a40f7a1177df169c
1 file changed
tree: c1570648a03685ac986eb0d0a98d5bcc36a458c0
  1. hal/
  2. legacy/
  3. post_proc/
  4. visualizer/
  5. voice_processing/
  6. Android.mk
  7. OWNERS