[llvm] [VPlan] Replace RdxDesc with RecurKind in VPReductionPHIRecipe (NFC). (PR #142322)

[via llvm-commits]

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@@ -2192,7 +2192,7 @@ struct VPFirstOrderRecurrencePHIRecipe : public VPHeaderPHIRecipe {
 class VPReductionPHIRecipe : public VPHeaderPHIRecipe,
                              public VPUnrollPartAccessor<2> {
   /// Descriptor for the reduction.
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ayalz wrote:

```suggestion
  /// The recurrence kind of the reduction.
```

https://github.com/llvm/llvm-project/pull/142322