[clang] [Matrix] Add a row\col major toggle in the clang driver (PR #167628)

[Florian Hahn via cfe-commits]

================
@@ -4571,6 +4578,19 @@ bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args,
       Diags.Report(diag::err_drv_invalid_value) << Arg->getAsString(Args) << S;
   }
 
+  // Enable options for Matrices
----------------
fhahn wrote:

```suggestion
  // Enable options for matrix types.
```

https://github.com/llvm/llvm-project/pull/167628