prebuilt.conf: updating FULL_BINHOST

Change-Id: I2b61bee2051136f992461f3d66da23d988756063
diff --git a/overlay-x86-generic/prebuilt.conf b/overlay-x86-generic/prebuilt.conf
index c992e77..a4beee2 100644
--- a/overlay-x86-generic/prebuilt.conf
+++ b/overlay-x86-generic/prebuilt.conf
@@ -1,2 +1,2 @@
 
-FULL_BINHOST="gs://chromeos-prebuilt/board/x86-generic/full-2014.05.20.223432/packages/"
+FULL_BINHOST="gs://chromeos-prebuilt/board/x86-generic/full-2014.05.21.003935/packages/"