pan/va: Accept DIM_SUBPASS[_MS] in valhall_tex_dimension()
What does this MR do and why?
We don't merge subpasses, so we can turn subpass attachment loads into tile buffer reads yet. Let's just treat those as regular 2D textures for now (as we do on Bifrost).
Closes: #11875 (closed)
Edited by Boris Brezillon