Defined N32 to always be BGRA


https://critique.corp.google.com/#review/294013931

Change-Id: I0e837b2a97b1d95918e9054c036e2a3d913009e2
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/269636
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
1 file changed