[DO NOT MERGE] Update Security String to 2017-02-01 on mnc-dev am: f92880e0c7 am: 6083d8337c am: e76d1419c7 am: 0c30223c15  -s ours
am: 4758581371

Change-Id: Ib67b4e7043da863341e0e9d2f79a3e9fed0a7351