Merge "Revert "Revert "libbinder: Flush excess refs after single async...

Merge "Revert "Revert "libbinder: Flush excess refs after single async transaction""" am: cabecdc6 am: dd051f64 am: 4621096b am: eb08b232 am: 9a4975af

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2455762



Change-Id: Ia99af0f5f37fa5a3ab9a388aa6cf2d584f70a044
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>