Omit encode-platform on N5 for all configs.

BUG=skia:5876

Change-Id: Icfd000638290418870df857722317c62cb6942d9
Reviewed-on: https://skia-review.googlesource.com/8827
Reviewed-by: Matt Sarett <msarett@google.com>
Commit-Queue: Ben Wagner <benjaminwagner@google.com>
2 files changed