[llvm] [BOLT][AArch64] Add tests for unsupported conditional tailcalls (PR #139565)

[Maksim Panchenko via llvm-commits]

maksfb wrote:

Hi Paschalis, your suggestion makes complete sense to me. I'll add "basic" support for these instructions, so we don't crash when we encounter them in light mode. Which will be skipping the relocations and relying on target function entry point patching/stub functionality.

https://github.com/llvm/llvm-project/pull/139565