Merge "RpcSession attaches/detaches JVM for Java thread" am: 487109e7bb am: c0c11cbbfd am: efecc0490d

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1751413

Change-Id: If8dedaebf063fc994fa7b2322a0cdce1cfa632d6