Link to libprotobuf dynamically am: 0dfaf40726

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/2813790

Change-Id: I05be7dc96bc333390879ebb38d970ee16fd7b292
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>