stream: emit finish when using writev and cork

In Writable, 'finish' was not emitted when using writev() and
cork() in the event of an Error during the write. This commit
makes it consistent with the write() path, which emits 'finish'.

Fixes: https://github.com/nodejs/node/issues/11121
PR-URL: https://github.com/nodejs/node/pull/13195


Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Calvin Metcalf <calvin.metcalf@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>