zink: fix layered resolves
Until recently, we ended up using u_blitter here, because info->render_condition_enable was always true here. But when we recently fixed that overly broad check, this broke.
So let's fix layered-resolves, by actually checking if the resource has layers respect them in that case, similar to what we do in blit_native.
Fixes: 19906022 ("zink: more accurately track supported blits") Closes: #3843 (closed)