Make sure we are getting the correct atlas for glyph mask format. Bug: b/491421267 Bug: b/491789011 Change-Id: I4eacd46599eca2df8c10a3fc894b9ce890fae1e2 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/1184076 Commit-Queue: Greg Daniel <egdaniel@google.com> Reviewed-by: Michael Ludwig <michaelludwig@google.com> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/1188237