Support ZERO op in ota extractor am: cf323870b4 am: b7a66ff8c1 am: 9ffb6c0508

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/2045685

Change-Id: I1794e451c9ef7c85fdf7668d474783ab0ec8a032
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>