[lldb] [llvm] [lldb][FreeBSD][AArch64] Enable register field detection (PR #85058)

[David Spickett via llvm-commits]

DavidSpickett wrote:

Eventually we'll need to pass the OS type to the detector, but this is not needed now and quite easy to add when it is needed.

https://github.com/llvm/llvm-project/pull/85058