[clang] [llvm] [llvm] Add triples for managarm (PR #87845)

[Fangrui Song via cfe-commits]

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@@ -279,8 +280,10 @@ class Triple {
     Amplification,
     OpenCL,
     OpenHOS,
+    Kernel,
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MaskRay wrote:

Why is a generic term `Kernel` added? I am concerned that it would cause confusion to users of other OSes.

Does your OS need a different target triple for kernel development? Note that almost all other OSes don't make the target triple distinction.

https://github.com/llvm/llvm-project/pull/87845