[llvm] [llvm-objdump] Add triple support to `mcpu=help` (PR #165661)

[James Henderson via llvm-commits]

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@@ -3533,6 +3533,21 @@ commaSeparatedValues(const llvm::opt::InputArgList &InputArgs, int ID) {
   return Values;
 }
 
+static int MCPUHelp() {
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jh7370 wrote:

[Name functions properly](https://llvm.org/docs/CodingStandards.html#name-types-functions-variables-and-enumerators-properly). This function name fails on both rules listed for functions.

https://github.com/llvm/llvm-project/pull/165661