macho+zld: write code signature padding before commiting LCs

Otherwise, we were prematurely committing `__LINKEDIT` segment LC
with outdated size (i.e., without code signature being taken into account).
This would scaffold into strict validation failures by Apple tooling.
550ebcce9aJakub Konka committed on 12/23/2022, 11:50:03 AMparent4aa8462
2 files changedLine totals unavailable