Update restapi (#5267)

sumukhatv · abdosi · commit fffc5833a9ea · 2020-09-03T15:51:31.000-07:00
* Add available routes data to heartbeat API
* Accept subnet routes via tunnel, skip self loopback nexthop
diff --git a/src/sonic-restapi b/src/sonic-restapi
@@ -1 +1 @@
-Subproject commit d821e5a9d85f346942e694698b8b75b5bddea902
+Subproject commit 71b81892fc5128e9b0bce42f889987888860126a
