[lld] [llvm] [lld][AArch64][Build Attributes] Add support for AArch64 Build Attributes (PR #144082)

[Peter Smith via llvm-commits]

https://github.com/smithp35 commented:

Please can you mention in the description that this change does not include support for outputting build attributes for relocatable links. This will come in a follow up patch. 

https://github.com/llvm/llvm-project/pull/144082