prebuilt.conf: updating FULL_BINHOST

Change-Id: I6dafe1aa720b9dfda7ce518ccbd92cf72e542a19
diff --git a/overlay-amd64-generic/prebuilt.conf b/overlay-amd64-generic/prebuilt.conf
index c1ff4cc..874f613 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-R70-10984.0.0-rc1/packages/"
+FULL_BINHOST="gs://chromeos-prebuilt/board/amd64-generic/full-R70-10984.0.0-rc2/packages/"