Merge "Add copy assignment operator for ParcelableHolder" am: f918f617e2 am: 19cb4237bb am: 37e296a49e

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2180755

Change-Id: Ic3fda00b42a0eb543b9a772002704030a700fe67
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>