update_engine: log network ID am: 7ff60fd8dc

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/2932770

Change-Id: I750a22f7cd5e147295044c2156376928ebf0fcb9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>