Merge "Notify BLAST layer when sideband stream is changed." into sc-dev am: 449f8e56d0

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/13587557

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ife1d74e9b9c475ec739d400be5a3fa1867172593