Merge "Add a fake hwservicemanager for running w/o hwservicemanager" am: 644721c337

Original change: https://android-review.googlesource.com/c/platform/system/libhidl/+/2082458

Change-Id: I2756fb0fac7093a21f0ee90f72ce8ba43894f732
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>