anv: don't advertise mipmaps for linear 3D surfaces on BDW
Prior to SKL, the mipmaps for 3D surfaces are laid out in a way that make it impossible to represent in the way that VkSubresourceLayout expects. Since we can't tell users how to make sense of them, don't report them as available.
"Fixes" dEQP-VK.image.subresource_layout.3d.*