Merge "Add fonts/OWNERS for font-related files." am: 1ab0fea04b am: c8a88daa25

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1529699

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Iffa9b6a2d4ac9b7593096ec718005f51935191ac