modpost: fix array_size.cocci warning

Fix following coccicheck warning:

scripts/mod/sumversion.c:219:48-49: WARNING: Use ARRAY_SIZE
scripts/mod/sumversion.c:156:48-49: WARNING: Use ARRAY_SIZE
Signed-off-by: KaiLong Wang <wangkailong@jari.cn>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

scripts/mod/sumversion.c

@@ -153,7 +153,7 @@ static void md4_transform(uint32_t *hash, uint32_t const *in)
 
 static inline void md4_transform_helper(struct md4_ctx *ctx)
 {
-	le32_to_cpu_array(ctx->block, sizeof(ctx->block) / sizeof(uint32_t));
+	le32_to_cpu_array(ctx->block, ARRAY_SIZE(ctx->block));
 	md4_transform(ctx->hash, ctx->block);
 }
 
@@ -216,7 +216,7 @@ static void md4_final_ascii(struct md4_ctx *mctx, char *out, unsigned int len)
 	le32_to_cpu_array(mctx->block, (sizeof(mctx->block) -
 			  sizeof(uint64_t)) / sizeof(uint32_t));
 	md4_transform(mctx->hash, mctx->block);
-	cpu_to_le32_array(mctx->hash, sizeof(mctx->hash) / sizeof(uint32_t));
+	cpu_to_le32_array(mctx->hash, ARRAY_SIZE(mctx->hash));
 
 	snprintf(out, len, "%08X%08X%08X%08X",
 		 mctx->hash[0], mctx->hash[1], mctx->hash[2], mctx->hash[3]);