bgpd: minor header/API clean up

Adds "const" on:
- peer_update_source_addr_set()
- peer_description_set()
Adds parameter names on:
- bgp_timers_set()
  (really confusing, this one, with 2 unexplained args of same type)
Adds new setter:
- peer_afc_set(), calling peer_activate/peer_deactivate.
  (intended for API consumers, matches peer->afc)

Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2 files changed