fix enrollment lost after reboot

Author: wei633

chromeos-base/cryptohome/files/lockbox-cache.conf

@@ -7,8 +7,8 @@ author          "chromium-os-dev@chromium.org"
 
 oom score -100
 
-# Runs before cryptohomed so it can consume install attributes.
-start on starting cryptohomed
+# The cache must be written before device_managementd starts.
+start on starting boot-services and started syslog
 
 env LOCKBOX_CACHE_DIR=/run/lockbox
 env LOCKBOX_NVRAM_FILE=/tmp/lockbox.nvram