Reclassify OFL as notice per cl/537072410 am: 166fa84e6a am: 2c93bf1691

Original change: https://android-review.googlesource.com/c/platform/external/google-fonts/karla/+/2611418

Change-Id: I5777f2764befbd82313c17a7e8a783327ac11a5b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>