[clang] [llvm] [AArch64] Add FEAT_FPAC to Neoverse V2 (PR #133054)

[Sjoerd Meijer via llvm-commits]

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@@ -19,6 +19,7 @@
 // CHECK-NEXT:     FEAT_ETE                                               Enable Embedded Trace Extension
 // CHECK-NEXT:     FEAT_FCMA                                              Enable Armv8.3-A Floating-point complex number support
 // CHECK-NEXT:     FEAT_FHM                                               Enable FP16 FML instructions
+// CHECK-NEXT:     FEAT_FPAC                                              Enable Armv8.3-A Pointer Authentication Faulting enhancement
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sjoerdmeijer wrote:

Thanks, yeah, I have been messing around with that file a lot and tried different things just to get rid of this Git warning:

> -// CHECK-NEXT:     FEAT_VHE                                               Enable Armv8.1-A Virtual Host extension
> \ No newline at end of file
> +// CHECK-NEXT:     FEAT_VHE                                               Enable Armv8.1-A Virtual Host extension

I don't get it, I don't see what is wrong.
But it was already there, I am ignoring it for now. 

https://github.com/llvm/llvm-project/pull/133054