prebuilt.conf: updating FULL_BINHOST

Change-Id: Ic6a9f940577ea3684d7e628f0d10ccc71c96963f
diff --git a/overlay-amd64-host/prebuilt.conf b/overlay-amd64-host/prebuilt.conf
index 9dae3cb..7601742 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-2019.06.18.074935/packages/"
+FULL_BINHOST="gs://chromeos-prebuilt/board/amd64-host/chroot-2019.06.19.004705/packages/"