[lld] [LLD][ELF][AArch64] Add support for SHF_AARCH64_PURECODE ELF section flag (3/3) (PR #125689)

[Csanád Hajdú via llvm-commits]

Il-Capitano wrote:

The code formatting check fail seems to be unrelated to this patch. `clang-format` is happy on my end.

https://github.com/llvm/llvm-project/pull/125689