Update Security String to 2016-10-01 to platform and CTS for October am: 3e6d6b3024 am: 985a8b2709 am: 3920471588 am: 4739db2df6 am: 143bd253d3 am: 01262bec46
am: 8cf402ace2  -s ours

Change-Id: I7814fa4d5394fd747fc5674a8a044a127c92d049