Merge "[hotword] vqds enabling by build flag" into udc-qpr-dev am: 0be36f0c am: c0c400fb

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24727583



Change-Id: I3d281b95e9a27c654931c12844e49c92bdf67c02
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>