Update YUV GMs to use SkYUVMath matrices

There is now just one location that defines these transformations.

Change-Id: I06b2c81610cb5aec73daa39d130f9da610b668ef
Bug: skia:9543
Change-Id: I06b2c81610cb5aec73daa39d130f9da610b668ef
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/251958
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
1 file changed