Merge "[hotword] init audioflinger outside of lock" into udc-dev am: 1246a1f6 am: ae41e8e7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22574377



Change-Id: I99e77579b157ced7a8d965b319b5fa6826080839
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>