rdma: Fix owner name for the kernel resources

rdma: Fix owner name for the kernel resources

Owner of kernel resources is printed in different format than user
resources to easy with the reader by simply looking on the name.
The kernel owner will have "[ ]" around the name.

Before this change:
[leonro@vm ~]$ rdma res show qp
link rocep0s9/1 lqpn 1 type GSI state RTS sq-psn 58 comm ib_core

After this change:
[leonro@vm ~]$ rdma res show qp
link rocep0s9/1 lqpn 1 type GSI state RTS sq-psn 58 comm [ib_core]

Fixes: b0a688a542cd ("rdma: Rewrite custom JSON and prints logic to use common API")
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>