Add SK_LEGACY_MAKE_COLOR_SPACE_IMPL

This will guard https://skia-review.googlesource.com/c/skia/+/158344
It introduces a few pixel_test diffs due to the test framework's
processing of images after read-back.

Bug: skia:8382
Change-Id: Id0ca8c4205a5537665610086db348145855dd8c4
Reviewed-on: https://chromium-review.googlesource.com/1255206
Commit-Queue: Brian Osman <brianosman@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
Reviewed-by: Mike Klein <mtklein@chromium.org>
Cr-Commit-Position: refs/heads/master@{#595547}

skia/config/SkUserConfig.h

@@ -173,6 +173,8 @@ SK_API void SkDebugf_FileLine(const char* file, int line, bool fatal,
 
 #define SK_LEGACY_COLORSPACE_XFORM_STEPS_IMPL
 
+#define SK_LEGACY_MAKE_COLOR_SPACE_IMPL
+
 ///////////////////////// Imported from BUILD.gn and skia_common.gypi
 
 /* In some places Skia can use static initializers for global initialization,