[roll] Roll fuchsia [ffx][product-bundle] Support recovery-specific boards

--recovery-board-config can be supplied which will be used when
generating the recovery slot.

Original-Bug: 453055945
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1420218
Original-Revision: b928fad652abb02ad6f440e3ba9fc5dd45fc9507
GitOrigin-RevId: a9b5f126c22e3cffdc23d2365ab43c31269b13cd
Change-Id: Idfdf58df7e637f4bd6e49b93936396db352d3aab
diff --git a/stem b/stem
index fd7d613..97654c7 100644
--- a/stem
+++ b/stem
@@ -7,7 +7,7 @@
             manifest="manifests/platform"
             root=""
             remote="https://fuchsia.googlesource.com/fuchsia"
-            revision="775afa65e791192b1cd457ac8d6095903b22ddba"/>
+            revision="b928fad652abb02ad6f440e3ba9fc5dd45fc9507"/>
   </imports>
   <projects>
     <project name="cobalt"