[roll] Roll fuchsia [gndoc] Update GN build arguments documentation

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1197515
Original-Revision: ebbdacbdd573dc778217563e1f6c5d5827ec562b
GitOrigin-RevId: e798d0fedd8c99d1eb9e011dbbaf644e23d38a7a
Change-Id: I18a9bae2ea5333178d6ea4ee90bdb3180e1485dc
diff --git a/stem b/stem
index a44e14c..70da8ec 100644
--- a/stem
+++ b/stem
@@ -11,7 +11,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="a0a890278e3a4e08a75034f7d20378e7c01811fb"/>
+             revision="ebbdacbdd573dc778217563e1f6c5d5827ec562b"/>
   </projects>
   <hooks>
     <hook name="install-environment"