Disable XOR ops if compression is set to none am: 49c06b2df8 am: 388c881f72

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/2886531

Change-Id: I3359f4fbcde4bdd251400b208dd4b18be86a71da
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>