[DO NOT MERGE] Updating Security String to 2017-03-05 on mnc-dev am: b6ac653f2d am: 41f489b098 am: cc7fef92de am: bc83db626c  -s ours am: 96ec99b33a
am: 7b5b22f71e

Change-Id: I1aee8fd6cf36d4a187a3813868bdfb1c173f2ffd