docs: remove stale API references and fix symbol typos in man pages

While reviewing the docs I found that some man pages still documented
functions that no longer exist in the code. An automated sweep of all
documented symbols against the source tree turned up more cases of the
same problem, plus a number of misspelled identifiers; this fixes the
ones in the core libraries, infiniband-diags, and rxe.

libibnetdisc:
- ibnd_discover_fabric(3): drop ibnd_debug(), ibnd_set_max_smps_on_wire()
  and ibnd_show_progress(), which no longer exist as functions. The
  max_smps and show_progress knobs now live in struct ibnd_config.
  Update the SYNOPSIS and examples to the current ca_name/ca_port/config
  API and fix the ibnd_destory_fabric typo.
- ibnd_iter_nodes(3): the callback type is ibnd_iter_node_func_t and
  ibnd_iter_nodes_type() takes a plain int node_type.
- man/CMakeLists.txt + debian: drop the man page aliases and install
  entries for the removed functions.

libibumad:
- umad_free_ca_device_list(3): the list is allocated by
  umad_get_ca_device_list(), not umad_get_ca_namelist().

libibverbs:
- ibv_create_flow_action(3): ibv_modify_flow_action_esp and
  ibv_destroy_flow_action are the real function names; fix the ESP
  flag/keymat/replay identifiers (the FULL_OFFLOAD misspelling,
  IBV_ACTION_ESP_KEYMAT_*, reply_*, esp_attr, keymat struct/enum names)
  and several field typos.
- ibv_wr_post(3): ibv_wr_set_sge (not ibv_set_wr_sge) and the inline
  data list is an array of struct ibv_data_buf.
- ibv_alloc_dm(3): the parameter is dm_offset.
- ibv_query_device_ex(3): enum ibv_odp_general_caps, transport spelled
  correctly, and the struct member is general_caps.
- ibv_advise_mr(3): IBV_ADVISE_MR_ADVICE_PREFETCH.
- ibv_read_counters(3): IBV_FLOW_SPEC_ETH instead of the removed
  IBV_EXP_FLOW_SPEC_ETH.

librdmacm:
- rdma_getaddrinfo(3): drop the librdmacm-1.0 era EAI_QPTYPE code and
  describe the actual return convention; fix ai_qp_type.
- rdma_create_ep(3): the field is res->ai_flags.
- rdma_post_sendv(3): the parameter is sgl.
- cmtime(1): milliseconds.
- rsocket(7): drop the max_events config parameter, which nothing reads.

infiniband-diags:
- saquery(8): there is no -o/--outstanding_smps option and saquery does
  not depend on libosmcomp.
- check_lft_balance(8): document the real options, remove the unsupported
  -R option, and distinguish the Debian command name from the .pl name
  installed on other distributions.

providers/rxe:
- rxe(7): drop the stale rdma_rxe_net sysfs entry.

Signed-off-by: Zhiwei Zhang <zhangzhiwei@bitintelligence.io>
Co-Authored-By: Claude Code <noreply@anthropic.com>