Pass GrColorType to the GrGpu::wrapRenderableBackendTexture chain of calls (take 2)

This is a step towards reducing our reliance-on/use-of the GrPixelConfig stored in the GrBackendTexture.

TBR=egdaniel@google.com
Bug: skia:6718
Change-Id: I316a98416c51f273e6ab578f9cbaea5f7adfe331
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/227639
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
24 files changed