RDMA/core: Add support to dump SRQ resource in RAW format

RDMA/core: Add support to dump SRQ resource in RAW format

Add support to dump SRQ resource in raw format. It enable drivers to
return the entire device specific SRQ context without setting each
field separately.

Example:
$ rdma res show srq -r
dev hns3 149000...

$ rdma res show srq -j -r
[{"ifindex":0,"ifname":"hns3","data":[149,0,0,...]}]

Signed-off-by: wenglianfa <wenglianfa@huawei.com>
Link: https://lore.kernel.org/r/20230918131110.3987498-3-huangjunxian6@hisilicon.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>