Support route deletion entries in SVP_R_LOG_ACK.

*** 411,420 ****
--- 411,422 ----
      const overlay_target_point_t *);
  extern void libvarpd_inject_arp(varpd_provider_handle_t *, const uint16_t,
      const uint8_t *, const struct in_addr *, const uint8_t *);
  extern void libvarpd_fma_degrade(varpd_provider_handle_t *, const char *);
  extern void libvarpd_fma_restore(varpd_provider_handle_t *);
+ extern void libvarpd_route_flush(varpd_provider_handle_t *, uint8_t *,
+     uint8_t *, uint8_t, uint8_t, uint16_t vlan_id);
  
  #ifdef __cplusplus
  }
  #endif