prebuilt.conf: updating FULL_BINHOST

Change-Id: Idb6205c31b691722047ccf71f9c577cc3e7b35f9
diff --git a/overlay-amd64-generic/prebuilt.conf b/overlay-amd64-generic/prebuilt.conf
index 8b17007..b0e1d0f 100644
--- a/overlay-amd64-generic/prebuilt.conf
+++ b/overlay-amd64-generic/prebuilt.conf
@@ -1,2 +1,2 @@
 
-FULL_BINHOST="gs://chromeos-prebuilt/board/amd64-generic/full-R69-10894.0.0-rc2/packages/"
+FULL_BINHOST="gs://chromeos-prebuilt/board/amd64-generic/full-R69-10894.0.0-rc3/packages/"