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: I1b32bc24e90bcd76d2c8bd8b002d4db2061f35fd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>