prebuilt.conf: updating FULL_BINHOST

Change-Id: I9f220e8cef33e486786b24c707c79d5c0e1d7aca
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/board-overlays/+/2284734
diff --git a/overlay-amd64-generic/prebuilt.conf b/overlay-amd64-generic/prebuilt.conf
index 200e85f..a289bc6 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-R86-13330.0.0-rc2/packages/"
+FULL_BINHOST="gs://chromeos-prebuilt/board/amd64-generic/full-R86-13331.0.0-rc1/packages/"