[llvm] [GlobalISel][AArch64] Legalize G_ADD, G_SUB, G_AND, G_OR, and G_XOR for SVE (PR #110561)

[Thorsten Schütt via llvm-commits]

tschuett wrote:

There are several occurrences.
```
def AArch64mul_p  : SDNode<"AArch64ISD::MUL_PRED",  SDT_AArch64Arith>;
```
where AArch64ISD::MUL_PRED is C++ and not tablegen.

https://github.com/llvm/llvm-project/pull/110561