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

[Craig Topper via cfe-commits]

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

I've very confused by naming of the library. It's called FrontendDriver but is currently important by clang's CodeGen library rather than the driver. Importing it into Basic seems to be moving it further in the wrong direction based on that name.

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