[llvm] [AArch64][NFC] Refactor SVE tail-folding option interleave test (PR #217560)

[Harry Ramsey via llvm-commits]

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@@ -283,39 +283,39 @@ for.end:
 define void @interleave(ptr noalias %dst, ptr noalias %src, i64 %n) #0 {
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Harry-Ramsey wrote:

This was manually updated. Using `utils/update_test_checks.py` has made the diff quite large since it removes the regex patterns but if that is acceptable, I can update that now? 

https://github.com/llvm/llvm-project/pull/217560