aco: use a smaller wqm section for strict_wqm sampling

It's only important that the coordinate is created in WQM,
the sample itself doesn't care.

Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35970>

src/amd/compiler/instruction_selection/aco_select_nir.cpp

@@ -683,7 +683,7 @@ visit_tex(isel_context* ctx, nir_tex_instr* instr)
    tex->tfe = instr->is_sparse;
    tex->d16 = d16;
    tex->a16 = a16;
-   if (implicit_derivs)
+   if (implicit_derivs && !has_wqm_coord)
       set_wqm(ctx, true);
 
    if (tg4_integer_cube_workaround) {

src/amd/compiler/instruction_selection/aco_select_nir_intrinsics.cpp

@@ -5134,6 +5134,7 @@ visit_intrinsic(isel_context* ctx, nir_intrinsic_instr* instr)
 
       vec->definitions[0] = Definition(dst);
       ctx->block->instructions.emplace_back(std::move(vec));
+      set_wqm(ctx, true);
       break;
    }
    case nir_intrinsic_store_scalar_arg_amd: {