[clang] [Clang][AArch64]Fix Name and Mangle name for scalar fp8 (PR #114983)

[via cfe-commits]

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@@ -3,9 +3,9 @@
 // REQUIRES: aarch64-registered-target
 #include<arm_neon.h>
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SpencerAbson wrote:

I think `#include <arm_neon.h>` is redundant here.

https://github.com/llvm/llvm-project/pull/114983