Fix update_engine libchrome log tag. am: 550ade4e44 am: ba5b18fda4 am: 75bd481ac2 am: 1e7066fa33 am: c894ff929c

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/1322876

Change-Id: Ie84a7473c862bf8d8926917ea82edd5178b24a53