[DO NOT MERGE] Update Security String to 2017-02-05 on mnc-dev am: 06e7d1f2ac am: 4e1976ff9b am: 7a2ca27f87 am: 31bc4666be  -s ours
am: 80d094259e

Change-Id: I90763143c525a186c503abccc6f710fb851d72b6