Merge "Disallow fastboot to modify locked DSU" into main am: 66b68dde92 am: a564954bc8 am: 3f86c25d2f am: 862b2270ed

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2744993

Change-Id: I275f18c57febca04f17e93246a4d97d529de786e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>