[clang] [Clang][TableGen] Use PointerType::get(Context) in MVE TableGen emitter (NFC) (PR #124782)

[Nikita Popov via cfe-commits]

================
@@ -210,7 +210,7 @@ class PointerType : public Type {
     return Name + " *";
   }
   std::string llvmName() const override {
-    return "llvm::PointerType::getUnqual(" + Pointee->llvmName() + ")";
+    return "llvm::PointerType::getUnqual(Builder.getPtrTy())";
----------------
nikic wrote:

```suggestion
    return "Builder.getPtrTy()";
```
:)

https://github.com/llvm/llvm-project/pull/124782