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

* commit '592d1c5a46b95015ec831febc953b17b721383e9':
  Updating Security Patch String to: 2016-03-18 - March 2016 OTA v2