ovn-nbctl: Fix nbctl_pre_lr_route_add for BFD.

In order to properly check if we already have a running BFD session for
the next hop used by the brand new route, load logical port column of
the nb BFD table in nbctl_pre_lr_route_add routine.

Acked-by: Mark Michelson <mmichels@redhat.com>
Fixes: db6d307 ("ovn-nbctl: Don't replicate entire database unnecessarily.")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Mark Michelson <mmichels@redhat.com>

utilities/ovn-nbctl.c

@@ -4394,6 +4394,7 @@ nbctl_pre_lr_route_add(struct ctl_context *ctx)
     ovsdb_idl_add_column(ctx->idl, &nbrec_logical_router_port_col_name);
 
     ovsdb_idl_add_column(ctx->idl, &nbrec_bfd_col_dst_ip);
+    ovsdb_idl_add_column(ctx->idl, &nbrec_bfd_col_logical_port);
 
     ovsdb_idl_add_column(ctx->idl,
                          &nbrec_logical_router_static_route_col_ip_prefix);