ntp: Revert "Disable stack gap for ntpd during build."
This reverts commit af949c590bd8a00a5973b5875d7e0fa6832ea64a because
889b56c8cd84c9a9f2d9e3b019c154d6f14d9021 fixes the underlying problem.
(cherry picked from commit 733a832fb515ef9ebf9d584896962fd28e714d0b)