prebuilt.conf: updating FULL_BINHOST

Change-Id: Ief004955d8964285fa7a7f28a8e8a1904f0126a5
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/board-overlays/+/2284571
diff --git a/overlay-kevin/prebuilt.conf b/overlay-kevin/prebuilt.conf
index 046d901..587a2b9 100644
--- a/overlay-kevin/prebuilt.conf
+++ b/overlay-kevin/prebuilt.conf
@@ -1 +1 @@
-FULL_BINHOST="gs://chromeos-prebuilt/board/kevin/full-R86-13330.0.0-rc2/packages/"
+FULL_BINHOST="gs://chromeos-prebuilt/board/kevin/full-R86-13331.0.0-rc1/packages/"