Merge "libhidl_test: fatal -> error warning" am: a89f743b5a am: 4042b96f62

Original change: https://android-review.googlesource.com/c/platform/system/libhidl/+/1558666

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ia28c9a7c52236b62711bf40b6f7c820989948c69