[llvm] [VPlan] Use scalar VPPhi instead of VPWidenPHIRecipe in createPlainCFG. (PR #150847)

[via llvm-commits]

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@@ -207,8 +205,8 @@ void PlainCFGBuilder::createVPInstructionsForVPBB(VPBasicBlock *VPBB,
       // Phi node's operands may have not been visited at this point. We create
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ayalz wrote:

independent nit:
```suggestion
      // Phi node's operands may not have been visited at this point. We create
```

https://github.com/llvm/llvm-project/pull/150847