[roll] Roll fuchsia [starnix] Use GetFlags for getting remote mount rights

Original-Bug: 400784119
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1263984
Original-Revision: c50cb175e2b40ef78f1e413bcdf600d51b9867a5
GitOrigin-RevId: d0a102ab0998fe5387617eb6256963bfe151bb7e
Change-Id: I04c479fb911c3aaeda0478f524575486d8beefc6
diff --git a/stem b/stem
index a0c9ad1..7abef4d 100644
--- a/stem
+++ b/stem
@@ -8,7 +8,7 @@
              root=""
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="7e1350a0eb19904ee757df4d4c369daff12ea6ea"
+             revision="c50cb175e2b40ef78f1e413bcdf600d51b9867a5"
              />
   </imports>
 </manifest>