Merge "Add a fake hwservicemanager for running w/o hwservicemanager" am: 644721c337 am: 10332b2d20 am: 853829accb

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

Change-Id: I82d1d137e338d7497994e7ab0a0b9846f7b49b6c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>