zink: limit gl_Layer clamping to drivers that need it

zink: limit gl_Layer clamping to drivers that need it

So far, only IMG drivers cannot handle out of bounds layer values.
Ideally, a vulkan extension will be drafted to detail this behavior.
But for now if KHR-GL46.texture_cube_map_array.color_depth_attachments
fails, then needs_sanitised_layer is probably needed.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19163>