Merge "Lock accesses to mClazz in AIBinder with a mutex" am: 11c276ec69 am: bc0eef555d am: 277a7c4396 am: 2fb940cbf1 am: fe784f3f38

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1433074

Change-Id: I3a5d9ee2b7b5b3af1e3c3c5ed273f7666a1d48f2