[mlir] [clang] [llvm] [AArch64][SME] Remove immediate argument restriction for svldr and svstr (PR #68565)

[Sander de Smalen via cfe-commits]

================
@@ -4850,6 +4852,93 @@ SDValue AArch64TargetLowering::getPStateSM(SelectionDAG &DAG, SDValue Chain,
                      Mask);
 }
 
+// Lower an SME LDR/STR ZA intrinsic to LDR_ZA_PSEUDO or STR_ZA.
----------------
sdesmalen-arm wrote:

```suggestion
// Lower an SME LDR/STR ZA intrinsic.
```
It may be confusing to the reader (it was to me) that LDR is a pseudo and the STR is not.

https://github.com/llvm/llvm-project/pull/68565