Merge "Camera: Clarify ERROR_REQUEST callback" into rvc-dev am: ee71769ebc am: 4f382fe9e8 am: c097ff1adf

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/11689356

Change-Id: I4e89f790abc4db1c935e9e6854c60e22de097f3a