Updating Security Patch String to: 2016-03-18 - March 2016 OTA v2 am: 7a498ba am: cdbccfd am: 5b24724 am: 592d1c5
am: bbf3687

* commit 'bbf3687eb83878bbba380799c9f25af1b227bee6':
  Updating Security Patch String to: 2016-03-18 - March 2016 OTA v2