Reclassify OFL as notice per cl/537072410 am: 1a85bfcdd8 am: 9d3077f3c6 am: 348ec68707 am: ee9dd21f2e am: 5159a51a5c

Original change: https://android-review.googlesource.com/c/platform/external/google-fonts/arbutus-slab/+/2611417

Change-Id: If9a5c291c999378d006d7a857e242efcaa5e9aeb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>