[ObjCopy] Respect requirements of LC_ENCRYPTION_INFO commands (#120995) LLD (and other Mach-O linkers) when preparing an encryptable binary make space to leave all the load commands in an non-encrypted page (see [1]) When using objcopy of a small encryptable binary, the code was not respecting this fact, and the encryptable segments were not kept beyond the first page. This was obvious for small or empty binaries. The changes introduced here keep track if a `LC_ENCRYPTION_INFO` or `LC_ENCRYPTION_INFO_64` has been seen, and in such case, it adds a full page of offset in order to leave the load commands in its own page (similar to what LLD is doing). [1]: https://github.com/llvm/llvm-project/blob/d8e792931226b15d9d2424ecd24ccfe13adc2367/lld/MachO/SyntheticSections.cpp#L90-L93
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