[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

Change-Id: Id8fc8dd549c29acc5c2a1d07e5ed056b20566a6a