Reclassify OFL as notice per cl/537072410 am: 65706315e7

Original change: https://android-review.googlesource.com/c/platform/external/google-fonts/arvo/+/2611710

Change-Id: I481ea536ace13d0b94b824c7d10e5b7214989d90
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>