Link to libprotobuf dynamically am: 0dfaf40726 am: 1badb4d90d

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

Change-Id: I8556de3bf9cc9ef09948ba31e5f7b1ef79fe0308
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>