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

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



Change-Id: I47281778979fbadc037ed453387ed4733f7c50ae
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>