Update Security String to 2016-10-01 to platform and CTS for October am: 3e6d6b3024 am: 985a8b2709 am: 3920471588 am: 4739db2df6
am: 143bd253d3

Change-Id: Id1c63d9fcc98c2f708601ea1e7b8b6ed3aeb9c40