Fix __NR_map_shadow_stack syscall-renumbering fallout in the x86 self-test code. [ Arguably the existing code was unnecessarily fragile, and tooling should have picked up the new syscall number, and a wider fix is being worked on - but meanwhile, let's not have the old syscall number in the kernel tree. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>