[llvm] [TTI] Fix discrepancies in prototypes between interface and implementations (NFCI) (PR #136655)

[Matt Arsenault via llvm-commits]

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@@ -1468,7 +1466,7 @@ class BasicTTIImplBase : public TargetTransformInfoImplCRTPBase<T> {
   }
 
   InstructionCost getMemoryOpCost(
-      unsigned Opcode, Type *Src, MaybeAlign Alignment, unsigned AddressSpace,
+      unsigned Opcode, Type *Src, Align Alignment, unsigned AddressSpace,
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arsenm wrote:

MaybeAlign shouldn't exist, Align(1) is always a suitable value 

https://github.com/llvm/llvm-project/pull/136655