[cleanup][csa] Fix kPointerSize usages in CSA

Bug: v8:8477, v8:8562
Change-Id: I6ef4291ebd6c2bb6acc4b525014ec02a88d45281
Reviewed-on: https://chromium-review.googlesource.com/c/1388525
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58471}

src/code-stub-assembler.h

@@ -692,7 +692,7 @@ class V8_EXPORT_PRIVATE CodeStubAssembler
   // Check that the value is a non-negative smi.
   TNode<BoolT> TaggedIsPositiveSmi(SloppyTNode<Object> a);
   // Check that a word has a word-aligned address.
-  TNode<BoolT> WordIsWordAligned(SloppyTNode<WordT> word);
+  TNode<BoolT> WordIsAligned(SloppyTNode<WordT> word, size_t alignment);
   TNode<BoolT> WordIsPowerOfTwo(SloppyTNode<IntPtrT> value);
 
 #if DEBUG