Improve Golang arm64 native unwinder

[fabled]

Currently the Golang native unwinder generates separate stack deltas when unwinding using LR or SP.

Since then the framepointers should be fixed, see e.g. golang/go#58432

Investigate if it would be possible to now use frame pointer unwinding on Golang/arm64. This requires a new unwind instruction to unwind using lr or fp depending on whether we are on leaf frame or not, and to detect if the Go runtime has proper frame pointers.

[fabled]

There seems to be also inconsistency in the code. In https://github.com/open-telemetry/opentelemetry-ebpf-profiler/blob/main/nativeunwind/elfunwindinfo/elfgopclntab.go#L269-L273 it is declared that frame pointers are used, but in real life the code at https://github.com/open-telemetry/opentelemetry-ebpf-profiler/blob/main/nativeunwind/elfunwindinfo/elfgopclntab.go#L640-L673 ends up using stack deltas regardless of the strategy selected.