s3: smbd: SMB1 SMBsplwr doesn't send a reply packet on success.

s3: smbd: SMB1 SMBsplwr doesn't send a reply packet on success.

Missing call to set up req->outbuf means no reply is sent.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14696

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Apr 29 21:27:58 UTC 2021 on sn-devel-184

(cherry picked from commit 47d79d7e7e406f7dd204ded7c72cfed3e0761ad5)

Autobuild-User(v4-13-test): Karolin Seeger <kseeger@samba.org>
Autobuild-Date(v4-13-test): Mon May  3 09:06:36 UTC 2021 on sn-devel-184