Merge "Simplify slicing related structs." into sc-dev am: 620835b499

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/13828002

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I5a1e56c003e121089f9a80d03470df90f2d95b65