fs: fix options.end of fs.ReadStream()

Fixes: https://github.com/nodejs/node/issues/18116
PR-URL: https://github.com/nodejs/node/pull/18121


Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Weijia Wang <starkwang@126.com>