[compiler-rt] tsan: add support for linux/loongarch64 in lib/tsan/go/buildgo.sh (PR #72819)

[via llvm-commits]

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@@ -697,6 +726,8 @@ ALWAYS_INLINE auto SelectMapping(Arg arg) {
   return Func::template Apply<MappingGoS390x>(arg);
 #  elif defined(__aarch64__)
   return Func::template Apply<MappingGoAarch64>(arg);
+#  elif defined(__loongarch64)
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Ami-zhang wrote:

` #  elif defined(__loongarch64)`
Please use `__loongarch_lp64` instead of `__loongarch64`.

https://github.com/llvm/llvm-project/pull/72819