Merge "Explicitly mark receivers as RECEIVER_NOT_EXPORTED" am: 66660a1a4e am: 79e59f4f6f am: 31a5f5b6b1

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1980646

Change-Id: I030db271d87833d9970a37d65da90249132e4fa4