prebuilt.conf: updating FULL_BINHOST

Change-Id: I64295801a367161ddc7f13337122e0fdd0fac70e
diff --git a/overlay-variant-beaglebone-servo/prebuilt.conf b/overlay-variant-beaglebone-servo/prebuilt.conf
index 84788d0..81b0c3b 100644
--- a/overlay-variant-beaglebone-servo/prebuilt.conf
+++ b/overlay-variant-beaglebone-servo/prebuilt.conf
@@ -1 +1 @@
-FULL_BINHOST="gs://chromeos-prebuilt/board/beaglebone_servo/postsubmit-R73-11446.0.0-rc2/packages/"
+FULL_BINHOST="gs://chromeos-prebuilt/board/beaglebone_servo/postsubmit-R73-11446.0.0-rc3/packages/"