rdma/ucm: Allow user to specify qp type when creating id

rdma/ucm: Allow user to specify qp type when creating id

Allow the user to indicate the QP type separate from the
port space when allocating an rdma_cm_id.  With RDMA_PS_IB,
there is no longer a 1:1 relationship between the QP type and
port space, so we need to switch on the QP type to select
between UD and connected QPs.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>