Windows GDI Typeface: set NotEmbeddable_FontFlag same as other backends.

Also fix a typo.

Change-Id: I1a94cd961887ef7f55a9bfd27def6b1675ec4952
Reviewed-on: https://skia-review.googlesource.com/69700
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
5 files changed