Link to libprotobuf dynamically am: 0dfaf40726 am: d0e96781e0

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

Change-Id: Iab880616eff553b9671278dce1afec2ff847305d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>