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

Change-Id: Ia9eba2faa155043c5e0da2122c1a204f7e5d19b3