migration doesn't add necessary columns to phpbb_styles table when updating schemas.

In migration/data/310/style_update_p1.php updates the data of phpbb_styles table.
It should update the schema and add columns - 'style_path','bbcode_bitfield', 'style_parent_id', 'style_parent_tree' to phpbb_styles table. This breaks the forum when database_update.php is run.