[clang] [AArch64][SME2] Fix SME2 mla/mls tests (PR #76711)

[Kerry McLaughlin via cfe-commits]

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@@ -460,7 +460,7 @@ void test_svmla_single4_u16(uint32_t slice_base, svuint16x4_t zn, svuint16_t zm)
 //
 void test_svmla_single4_s16(uint32_t slice_base, svint16x4_t zn, svint16_t zm) __arm_streaming __arm_shared_za
 {
-   SVE_ACLE_FUNC(svmla_single_za32,,_s16,,_vg2x4)(slice_base, zn, zm);
+   SVE_ACLE_FUNC(svmla,_single,_za32,_s16,_vg2x4)(slice_base, zn, zm);
 }
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kmclaughlin-arm wrote:

The tests for the `svmla_lane` builtins in this file also need to be updated.

https://github.com/llvm/llvm-project/pull/76711