Merge "Add a return value to BlobCache::set" into tm-dev am: 8a5d80d7d1 am: 1f5d63e17c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/18145090

Change-Id: I1cee4bae40059203090b6dd609f200f366b57f33
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>