Merge "libbinder: add build option for single-threaded RPC" am: 8021d313

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2057171



Change-Id: I08856b57b81f578479d1eaba743d5bdfb32232f0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>