Updating security string to 2016-09-05 to platform and CTS in preparation for 2016 September OTA on mnc-dev am: 525c6aa541 am: 63ec9d8f23 am: 04fe21c7b7
am: 8736caaba9

Change-Id: Id5b440e150d514e85ee28aab7830d1d94e8cc5b9