[clang] [Clang][RISCV] Add preprocessor macros for Zicfilp CFI scheme (PR #109600)

[Kito Cheng via cfe-commits]

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@@ -2022,6 +2035,22 @@ bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args,
       Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
   }
 
+  if (const Arg *const A = Args.getLastArg(OPT_fcf_branch_label_scheme_EQ)) {
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kito-cheng wrote:

```suggestion
  if (const Arg *A = Args.getLastArg(OPT_fcf_branch_label_scheme_EQ)) {
```

For consistency with other site within this file.

https://github.com/llvm/llvm-project/pull/109600