Ignore divide by zero in SkColorSpaceXformSteps::apply

We're relying on IEEE behavior here (and checking the result), so this
is safe.

Bug: oss-fuzz:35004
Change-Id: I82cc38f7802455036b34d9afdb525662877f3809
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/417201
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
1 file changed