[Do Not Merge] Update Security String to 2017-11-01 on mnc-dev bug:65631379 am: 0c93452c64 am: 0bae3f0fa4 am: b691e678be am: 33e8f674d7  -s ours
am: a991b6acc2

Change-Id: I4d8f6bf1aae97821ef9fe6f107d482b06b950536