Merge "Camera: Document limitation on private reprocessing" into udc-dev am:...

Merge "Camera: Document limitation on private reprocessing" into udc-dev am: a7bfaf6d am: 2907b5cc

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/21564886



Change-Id: Iccffb05114f1a35921255c9f0925d6a5ee3e45a8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>