Marking set of ebuilds as stable

Update PREFLIGHT_BINHOST=gs://chromeos-x86-alex/binary/453/prebuilts/board/x86-alex/binary-16.09.11.035803/packages/ in x86-alex-PREFLIGHT_BINHOST.conf

Change-Id: I40648c292599cf51fe3827fc1bc54d46dbf0e169
diff --git a/chromeos/binhost/target/x86-alex-PREFLIGHT_BINHOST.conf b/chromeos/binhost/target/x86-alex-PREFLIGHT_BINHOST.conf
index deea5cc..26b52a2 100644
--- a/chromeos/binhost/target/x86-alex-PREFLIGHT_BINHOST.conf
+++ b/chromeos/binhost/target/x86-alex-PREFLIGHT_BINHOST.conf
@@ -1 +1 @@
-PREFLIGHT_BINHOST="gs://chromeos-x86-alex/binary/452/prebuilts/board/x86-alex/binary-15.09.11.025731/packages/"
+PREFLIGHT_BINHOST="gs://chromeos-x86-alex/binary/453/prebuilts/board/x86-alex/binary-16.09.11.035803/packages/"