Fix asserts in SkRuntimeEffect color filter benchmarks

The interpreter doesn't (yet) support all GPU intrinsics, so adjust the
code to avoid 'max' and 'saturate'.

The interpreter is more picky about uniform blocks being the correct
size, so don't pass the color matrix data to the "None" effect, which
has no uniforms.

Change-Id: I4609f913eaa762ca171b2875eb25d23141a0646c
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/261931
Auto-Submit: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
1 file changed