Merge "Drop prebuilt files to android source tree." into tm-dev am: 045ab2fc57

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18331943

Change-Id: I6a34078d1b64932297e51bd500ad49a431dbfa47
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>