audiolfinger: implement latency mode control in spatializer mixer am: 68a40a84 am: b925013e

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/19066193



Change-Id: I105612d6db1a7a94149b538b7d93611a20088e85
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>