[DO NOT MERGE] Update LMP Security string to 2017-12-01 Bug: 67774760 am: 804540a3a7  -s ours am: dc25041602  -s ours am: 4e4fedefd6 am: 4739b13afb am: 81a4c67d31 am: 1a5eaff412  -s ours am: f95b1f3e5b am: cfd9cfa9b0 am: 35f2bfc71b am: c84b354db1 am: 7365c3b5fd  -s ours am: 69894c0222
am: 82840f3318

Change-Id: Ie73e0f8a8c767d871ae2be74d944c5b02fd106e1