prebuilt.conf: updating FULL_BINHOST

Change-Id: I220974bd13776c516f0fa266f19ce5a2ea280de2
diff --git a/overlay-x86-generic/prebuilt.conf b/overlay-x86-generic/prebuilt.conf
index 6a88048d..ce362ca 100644
--- a/overlay-x86-generic/prebuilt.conf
+++ b/overlay-x86-generic/prebuilt.conf
@@ -1 +1 @@
-FULL_BINHOST="https://commondatastorage.googleapis.com/chromeos-prebuilt/board/x86-generic/full-2013.08.13.023847/packages/"
+FULL_BINHOST="https://commondatastorage.googleapis.com/chromeos-prebuilt/board/x86-generic/full-2013.08.13.040719/packages/"