Set uid as part of QP commands so that the firmware can manage the
QP object in a secured way.

That will enable using a QP that was created by verbs application to
be used by the DEVX flow in case the uid is equal.
Signed-off-by: NYishai Hadas <yishaih@mellanox.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>