[roll] Roll fuchsia [kernel][vm] lazily allocated csm sets vmo stream

Lazily allocating a ContentSizeManager in the VmObjectDispatcher now
passes a reference to the CSM to the VMO.

Run-All-Tests: true
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1161332
Original-Revision: edbfb6beae2e7572d558f702258f19a38177628d
GitOrigin-RevId: 937476b0b45ebc35957234fcfef2b6751ad62c4a
Change-Id: I3512940b44fb8af2819f4f1b083e1cb5275feaee
diff --git a/stem b/stem
index 87cebdc..ac39887 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="3e5fcb26647436c848ac11d323cad791e86c4788"/>
+             revision="edbfb6beae2e7572d558f702258f19a38177628d"/>
   </projects>
   <hooks>
     <hook name="install-environment"