Revert "Revert "Assert that all GrCaps colortype/format -> swizzle queries are legal.""

This reverts commit ef4d3794a2ddffa877065aa66869c02bb582a479.

Fix for finding cached textures that were made with fallback color types.

Change-Id: Ic5b67801f9275f6a1cbe8373b8cce382f3cedfe7
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/280607
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
14 files changed