Specify that skcms tests are "small"

This suppresses the warning that test execution time was too short.

Change-Id: I562fbfc07b8f273e250d7d7cfe7d8b4ac7cdded6
Reviewed-on: https://skia-review.googlesource.com/c/skcms/+/582342
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
1 file changed