fix volume value of reverb and volume flag of visualizer am: 46597fb6

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2847797



Change-Id: I409daecca4f4a05cc4214fc1b986dd07e9b61928
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>