IB/core cleanup: Add const to RDMA helpers
IB/core cleanup: Add const to RDMA helpers

The ib_device passed to the new RDMA helpers is constant.  Declare the
ib_device as const in the following functions.

rdma_protocol_ib
rdma_protocol_roce
rdma_protocol_iwarp
rdma_ib_or_roce
rdma_cap_ib_mad
rdma_cap_ib_smi
rdma_cap_ib_cm
rdma_cap_iw_cm
rdma_cap_ib_sa
rdma_cap_ib_mcast
rdma_cap_af_ib
rdma_cap_eth_ah

Signed-off-by: Ira Weiny <5535a83d6b33e2bc00edcbbbebec5c5b8e5537a3@intel.com>
Reviewed-by: Hal Rosenstock <9e6695d099466e0f180c5e2c6bf265428143a3e9@mellanox.com>
Reviewed-by: Jason Gunthorpe <a99b91d77388df0ccdee94a722cec2f833ed4ae5@obsidianresearch.com>
Signed-off-by: Doug Ledford <f35204f44eabfe97bbcdd18aee9e9fffc59f29e1@redhat.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs