Use SkShaderBase::MatrixRec rather than SkMatrixProvider for shader SkVM

Bug: skia:14076
Bug: skia:14075
Change-Id: I86c054a55c62ad0aeb44395e3b84d4aa995087de
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/635316
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: John Stiles <johnstiles@google.com>
30 files changed