[DO NOT MERGE] Update Security String to 2017-06-01 in klp-dev am: e6a77de4...

[DO NOT MERGE] Update Security String to 2017-06-01 in klp-dev am: e6a77de4 am: 8dcfa2ac am: 386d7ae2  -s ours am: 4389a11f  -s ours am: 65101a95 am: 18c3da68  -s ours am: 988fc368 am: 14ef6098 am: a34845a2 am: a73f9cf1  -s ours am: 3720a2f3 am: 597a5a8b
am: 859eeaa4  -s ours

Change-Id: Ifa42571c6012ddfd2d49a78f2d9cb70e066366ed