exclude SkColorSpaceXform_skcms.cpp from Google3

We're globbing it up right now, but can't build without skcms.h.

Change-Id: I2a9b29b7a91a0c8cccc73b1e20f64c1f6181eabd
Reviewed-on: https://skia-review.googlesource.com/116623
Reviewed-by: Brian Osman <brianosman@google.com>
1 file changed