Live patching on ARM64

[Madhavan T. Venkataraman]

> Sorry for the late reply. The last RFC for arm64 support in objtool is a bit old because it was preferable to split things into smaller series.
> 
> I touched it much lately, so I'm picking it back up and will try to get a git branch into shape on a recent mainline (a few things need fixing since the last time I rebased it).
> 
> I'll update you once I have something at least usable/presentable.
> 
> Cheers,
> 

Great. Thanks!

Madhavan