[roll] Roll fuchsia [netstack] Nil NDP event queue if empty

Original-Bug: 109616
Test: netstack-gotests
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/733629
Original-Revision: e55350557a9a708929d1c3c034a8eac60166aa95
GitOrigin-RevId: b408461dc691400ca469d81066e44e8c24be7853
Change-Id: Ib2d2f75e519dcb58b355a7492fadff8256017c29
diff --git a/stem b/stem
index 2322375..ca6632f 100644
--- a/stem
+++ b/stem
@@ -10,7 +10,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="1c080b286c8543e6daaff421760f74ad8d0e2c4d"/>
+             revision="e55350557a9a708929d1c3c034a8eac60166aa95"/>
   </projects>
   <hooks>
     <hook name="install-environment"