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

[Paul Walker via llvm-commits]

https://github.com/paulwalker-arm commented:

Now that you're making `MinimumJumpTableEntries` a per function property perhaps it’s better stored in `AArch64Subtarget` and then you don’t need to change the existing `getMinimumJumpTableEntries` interface.  This will be more in keeping with how other per function settings are handled.

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