[llvm] [BOLT][AArch64] Fixed indirect call instrumentation snippet (PR #141918)

[Alexey Moksyakov via llvm-commits]

yavtuk wrote:

> Shall we also check the entry / exit stubs in the amended lit test? ie objdump and check code output of `__bolt_instr _ind_call_handler`, `bolt_instr_ind_call_handler_func`
> 
> We could also check the BOLT output, probably with:
> 
> > BOLT-INSTRUMENTER: Number of indirect call site descriptors: N

yes, sure

https://github.com/llvm/llvm-project/pull/141918