bgpd: Add `set as-path replace <any|ASN>` cmd for route-maps

```
route-map tstas permit 10
 set as-path replace 1
exit
```

Before:

```
donatas-laptop(config-router-af)# do show ip bgp 10.10.10.10/32
BGP routing table entry for 10.10.10.10/32, version 13
Paths: (1 available, best #1, table default)
  Advertised to non peer-group peers:
  192.168.10.65
  65000 1 2 3 123
    192.168.10.65 from 192.168.10.65 (10.10.10.11)
      Origin IGP, metric 0, valid, external, best (First path received)
      Last update: Mon Apr 25 10:39:50 2022
```

After:

```
donatas-laptop(config-router-af)# do show ip bgp 10.10.10.10/32
BGP routing table entry for 10.10.10.10/32, version 15
Paths: (1 available, best #1, table default)
  Advertised to non peer-group peers:
  192.168.10.65
  65000 65010 2 3 123
    192.168.10.65 from 192.168.10.65 (10.10.10.11)
      Origin IGP, metric 0, valid, external, best (First path received)
      Last update: Mon Apr 25 10:40:16 2022
```

Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/bgpd/bgp_routemap_nb.h b/bgpd/bgp_routemap_nb.h
index e0b3a6926..a01adf7d5 100644
--- a/bgpd/bgp_routemap_nb.h
+++ b/bgpd/bgp_routemap_nb.h
@@ -108,6 +108,10 @@ int lib_route_map_entry_set_action_rmap_set_action_last_as_modify(struct nb_cb_m
 int lib_route_map_entry_set_action_rmap_set_action_last_as_destroy(struct nb_cb_destroy_args *args);
 int lib_route_map_entry_set_action_rmap_set_action_exclude_as_path_modify(struct nb_cb_modify_args *args);
 int lib_route_map_entry_set_action_rmap_set_action_exclude_as_path_destroy(struct nb_cb_destroy_args *args);
+int lib_route_map_entry_set_action_rmap_set_action_replace_as_path_modify(
+	struct nb_cb_modify_args *args);
+int lib_route_map_entry_set_action_rmap_set_action_replace_as_path_destroy(
+	struct nb_cb_destroy_args *args);
 int lib_route_map_entry_set_action_rmap_set_action_community_none_modify(struct nb_cb_modify_args *args);
 int lib_route_map_entry_set_action_rmap_set_action_community_none_destroy(struct nb_cb_destroy_args *args);
 int lib_route_map_entry_set_action_rmap_set_action_community_string_modify(struct nb_cb_modify_args *args);