core/types: fix typo in comment (ethereum#25249)

core/types/hashing.go

@@ -31,7 +31,7 @@ var hasherPool = sync.Pool{
 	New: func() interface{} { return sha3.NewLegacyKeccak256() },
 }
 
-// deriveBufferPool holds temporary encoder buffers for DeriveSha and TX encoding.
+// encodeBufferPool holds temporary encoder buffers for DeriveSha and TX encoding.
 var encodeBufferPool = sync.Pool{
 	New: func() interface{} { return new(bytes.Buffer) },
 }