Update Security String to 2016-10-01 to platform and CTS for October Security am: cb60b2dedb am: e977aadfea am: 95e55dce44 am: 7d5d729831 am: 5d6ad4a9ab
am: 4249783848

Change-Id: I2f38e133c7aa47ba4c567b633baf8a3ee940852a