nvme-rdma: fix typo in comment

JIRA: https://issues.redhat.com/browse/RHEL-10966

commit f3f28373152da143da9d163b2529669508e52e8e
Author: Max Gurtovoy mgurtovoy@nvidia.com
Date: Thu Apr 20 02:17:50 2023 +0300

nvme-rdma: fix typo in comment  

There is no ib_stop_cq API and the need for the +1 is for ib_drain_qp.  

Reviewed-by: Sagi Grimberg <sagi@grimberg.me>  
Reviewed-by: Israel Rukshin <israelr@nvidia.com>  
Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com>  
Reviewed-by: Christoph Hellwig <hch@lst.de>  
Signed-off-by: Keith Busch <kbusch@kernel.org>  

Signed-off-by: Kamal Heib kheib@redhat.com