zink: add SpvCapabilityStorageImageMultisample for multisampled storage images

cc: mesa-stable

Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13631>

src/gallium/drivers/zink/nir_to_spirv/spirv_builder.c

@@ -1224,6 +1224,8 @@ spirv_builder_type_image(struct spirv_builder *b, SpvId sampled_type,
       sampled_type, dim, depth ? 1 : 0, arrayed ? 1 : 0, ms ? 1 : 0, sampled,
       image_format
    };
+   if (sampled == 2 && ms)
+      spirv_builder_emit_cap(b, SpvCapabilityStorageImageMultisample);
    return get_type_def(b, SpvOpTypeImage, args, ARRAY_SIZE(args));
 }