Merge "libbinder: fix ToString() for smart pointers" am: 616ddc4f6f am: 06863efc21 am: da67104987

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1589291

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I30fc85023a60a111317bdba8cb0c104932a4b88a