[llvm] [VPlan] Move predication to VPlanTransform (NFC). (PR #128420)

[via llvm-commits]

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@@ -66,8 +66,7 @@ class PlainCFGBuilder {
       : TheLoop(Lp), LI(LI), Plan(std::make_unique<VPlan>(Lp)) {}
 
   /// Build plain CFG for TheLoop  and connects it to Plan's entry.
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ayalz wrote:

```suggestion
  /// Build plain CFG for TheLoop and connect it to Plan's entry.
```

https://github.com/llvm/llvm-project/pull/128420