Update MobileVastPlayer.js with tagged version "MobileSDK_SyncWithEncino_2018August7".
Update MobileVastPlayer.js with tagged version "MobileSDK_SyncWithEncino_2018August7".

REVIEWERS
  Primary:    Abhishek
  Secondary:  Kowshick

appnexus/mobile-sdk-ios,appnexus/mobile-sdk-ios,appnexus/mobile-sdk-ios,appnexus/mobile-sdk-ios,appnexus/mobile-sdk-ios,appnexus/mobile-sdk-ios