linux-imx

RDMA/netlink: Hide unimplemented NLDEV commands

The nldev was implemented by following devlink implementation,
including SET/DEL/NEW commands. However these commands were not
implemented and hence don't need to be exposed.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>