Add a check to skip .ksyms/.kconfig from BTF section fixups

[grantseltzer]

When I was trying to use a custom kfunc I was met with the following error when trying to load my bpf object:

Error: BTF error: Unable to determine the size of section `.ksyms`

Caused by:
    Unable to determine the size of section `.ksyms`

libbpf (and cilium/ebpf) ignore .ksyms and .kconfig when patching missing info in Datasecs. This is because these two sections are external, and won't have any information to gather in ELF sections. Aya should do the same.

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[grantseltzer]

Changed this to a draft as after further testing there appears to be more linking fixes needed. Actively working on it.

[vadorovsky]

There is ongoing work on supporting ksyms - #1372 - that already contains a fix similar to yours, but also relocates the ksyms using kernel's BTF. Ler's maybe try to get that one in?

[grantseltzer]

There is ongoing work on supporting ksyms - #1372 - that already contains a fix similar to yours, but also relocates the ksyms using kernel's BTF. Ler's maybe try to get that one in?

Ah that's great, thank you for pointing that out. I'll keep my eye on that PR