Merge "libbinder: avoid global mutex every binder call" am: 2054ee3fee am: 0ee6d8fcd8 am: 4d836a68c6 am: d35efe9b91

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1367817

Change-Id: I70c08a50060321c5f2d03a63728a44788b385b0b