[llvm] [CodeGen][AArch64] Set min jump table entries to 13 for AArch64 targets (PR #71166)

[Sjoerd Meijer via llvm-commits]

sjoerdmeijer wrote:

FWIW: this gives < 0.5% on the Neoverse V2 for Perlbench. Might even be noise because I haven't done a lot of runs. 

https://github.com/llvm/llvm-project/pull/71166