Fix skcms Mac build job

Change-Id: I67fdcafba11e826b2ac0d42e081298f4dd302ec3
Reviewed-on: https://skia-review.googlesource.com/145733
Auto-Submit: Ben Wagner <benjaminwagner@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
1 file changed