isisd: API: timers (LSP, SPF)

See previous commits...

Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
diff --git a/isisd/isisd.h b/isisd/isisd.h
index 2ba44d8..0186644 100644
--- a/isisd/isisd.h
+++ b/isisd/isisd.h
@@ -148,6 +148,10 @@
 			       bool new_metric);
 void isis_area_lsp_mtu_set(struct isis_area *area, unsigned int lsp_mtu);
 void isis_area_is_type_set(struct isis_area *area, int is_type);
+void isis_area_max_lsp_lifetime_set(struct isis_area *area, int level,
+			            uint16_t max_lsp_lifetime);
+void isis_area_lsp_refresh_set(struct isis_area *area, int level,
+			       uint16_t lsp_refresh);
 
 void isis_vty_init (void);