Initialize the rdma_type (iWARP or RoCE) which is set according to
device configuration in qed.

Fixes: e6a38c54 ("RDMA/qedr: Add support for registering an iWARP device")
Signed-off-by: NMichal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: NAriel Elior <Ariel.Elior@cavium.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>