Update Security String to 2016-12-01 am: bacdf263ee am: c8ce9e6e00 am: 7c0f193b7f  -s ours am: 5d3d63700d am: 3593bce5d9
am: ddadcf3b9b

Change-Id: I0fb72e12a834e262037427d441ad80a2ea45f29d