fix op fuzz timeout

R=kjlubick@google.com
Bug:831647
Change-Id: I003ff28ac40ec81400570310bf6f6f1a08a925e5
Reviewed-on: https://skia-review.googlesource.com/134505
Commit-Queue: Cary Clark <caryclark@skia.org>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Cary Clark <caryclark@skia.org>
6 files changed