[ticket/12352] Introduce user row to passwords check methods

This will ensure that legacy hash types that might need the user row can
properly check if the supplied password is correct.

PHPBB3-12352

phpBB/phpbb/passwords/driver/salted_md5.php

@@ -92,7 +92,7 @@ class salted_md5 extends base
 	/**
 	* @inheritdoc
 	*/
-	public function check($password, $hash)
+	public function check($password, $hash, $user_row = array())
 	{
 		if (strlen($hash) !== 34)
 		{