Add specific error codes to enable better error handling am: be0a349a6d am: 10eb0870a6 am: a041b26b77

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/2857466

Change-Id: I5cbe1cca7976465c3dacc068cd159b84396bcd18
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>