Merge "onRegistrationImpl: handle getTransport error" am: c958ae096a am: a8e8f13e8d

Original change: https://android-review.googlesource.com/c/platform/system/libhidl/+/1557026

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ic91846f6813a24ab70f2dd15ade16a5adefe7366