Merge "Correct used size of Storage Settings." into udc-d1-dev am: d86ec6652a

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/23898724

Change-Id: I719498d48769f1b93e87dc2705de938753ada8cd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>