Merge "libbinder: RPC node toString" am: 857cd25e3d

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2154254

Change-Id: I6276fcf22efded3a8cd2571c7308ee161397c096
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>