[clang] [flang]Add vscale argument parsing (PR #67676)

[Tom Eccles via cfe-commits]

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@@ -42,6 +42,7 @@
 #include "mlir/Target/LLVMIR/ModuleTranslation.h"
 #include "clang/Basic/Diagnostic.h"
 #include "clang/Basic/DiagnosticFrontend.h"
+#include "clang/Basic/TargetInfo.h"
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tblah wrote:

Is this used anywhere?

https://github.com/llvm/llvm-project/pull/67676