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
Change-Id: Idbcde71d6377a16807e41c999120eeddd5b4d8a4
1 file changed