Suppress uninitialized value warnings. am: 6e4f345e8a

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/2365953

Change-Id: I4b5ef6b58229f0a43db7f46de14e877957d52ac2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>