Update Security String to 2017-02-01 in lmp-dev am: 19717dff7c am: 36d8423804 am: ca32812b01  -s ours am: 2e720eba5f am: c8d8647e37 am: 8e5abe38c0
am: 78cdf4fd07

Change-Id: I842e2b6e945ccf499c64739113766591fd4d64ea