Merge "Add unlicense support to add3prf.py" into main am: 844b604fec

Original change: https://android-review.googlesource.com/c/platform/development/+/2888607

Change-Id: Id54dc1a49583191a5582814937b84580dca9fc7c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>