[clang] [llvm] [Clang][RISCV] Move getVScaleRange logic into libLLVMFrontendDriver. NFC (PR #77327)

[Thorsten Schütt via llvm-commits]

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@@ -2,6 +2,7 @@ set(LLVM_LINK_COMPONENTS
   Support
   TargetParser
   FrontendOpenMP
+  FrontendDriver
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tschuett wrote:

I would prefer putting it into FrontendDriver for style and as a precedence to encourage others to put more into the frontend.

https://github.com/llvm/llvm-project/pull/77327