prebuilt.conf: updating FULL_BINHOST

Change-Id: I91ab436d40488d987c672c48b91f1929801f6706
diff --git a/overlay-amd64-host/prebuilt.conf b/overlay-amd64-host/prebuilt.conf
index 398c6f3..58a40f4 100644
--- a/overlay-amd64-host/prebuilt.conf
+++ b/overlay-amd64-host/prebuilt.conf
@@ -1,2 +1,2 @@
 
-FULL_BINHOST="gs://chromeos-prebuilt/board/amd64-host/chroot-2016.05.03.080851/packages/"
+FULL_BINHOST="gs://chromeos-prebuilt/board/amd64-host/chroot-2016.05.03.204321/packages/"