[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 am: ab8c6b7e33 am: 920376a35a
am: 5260c53a72

Change-Id: Ic5680e80d403f77c5b45d59d74139f142572bb2f