DO NOT MERGE : Update Security String to 2017-05-05 on lmp-dev am: baf29229ca  -s ours am: 9921f826fe am: 88ba3a3bf8  -s ours am: fc869b58e8 am: 959da97bba am: 7f4fbb79ac am: 9754351b7c  -s ours am: f727c7433b am: 9525d910c7 am: 00bec5014e  -s ours am: fb17367c34  -s ours
am: 6682fdbc78  -s ours

Change-Id: I36322b7f1012c3b7452ccccab32655e8a4012c60