fs/ntfs3: add fall-through between switch labels
Add fall-through to fix the warning in ntfs_fs_parse_param().
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202602041402.uojBz5QY-lkp@intel.com/
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>