Use Jan 1 2009 as timestamp in OTA update ZIPs.

This is a follow-up to 6c41036bcf35fe39162b50d27533f0f3bfab3028 where
I forgot to update a section of OTA update ZIP code.

Bug: 26864066

(cherry picked from commit f735851fa95ea7b372ab4245a7b583667efb4ea9)

Change-Id: I4f85ce170ac72d13a9c8636414927a295e350458
1 file changed