[clang] [AArch64][SME]Update intrinsic interface for ld1/st1 (PR #65582)

[Sander de Smalen via cfe-commits]

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@@ -84,8 +76,8 @@ ARM_STREAMING_ATTR void test_svld1_hor_za64(uint32_t slice_base, svbool_t pg, co
 //
 ARM_STREAMING_ATTR void test_svld1_hor_za128(uint32_t slice_base, svbool_t pg, const void *ptr) {
   uint32_t slice = slice_base;
-  svld1_hor_za128(0, slice, pg, ptr);
-  svld1_hor_za128(15, slice, pg, ptr);
+  svld1_hor_za128(0, slice_base, pg, ptr);
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sdesmalen-arm wrote:

```uint32_t slice = slice_base;```
nit: unused variable

https://github.com/llvm/llvm-project/pull/65582