fs/ntfs3: Add sanity check for file name

The length of the file name should be smaller than the directory entry size.

Reported-by:  <syzbot+598057afa0f49e62bd23@syzkaller.appspotmail.com>
Closes: https://syzkaller.appspot.com/bug?extid=598057afa0f49e62bd23


Signed-off-by: Lizhi Xu <lizhi.xu@windriver.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>