Merge tag 'android-security-11.0.0_r49' into int/11/fp3

Android security 11.0.0 release 49

* tag 'android-security-11.0.0_r49':
  Make mIsDeviceLockedForUser synchronized.

Change-Id: I90e8a95d5346ce3d99ac1d1cea2bc67796fc08ea