Merge "RPC Binder: dropping all binders drops session" am: 2b420f6bac am: a8a5e06ca8 am: bc9cf3246f

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2471756

Change-Id: Ie042f7ba9a676b90e882e9a793bf4d94b58a1cfa
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>