Merge tag 'android-8.1.0_r52' into staging/lineage-15.1_merge-android-8.1.0_r52

Android 8.1.0 release 52

* tag 'android-8.1.0_r52':
  [DO NOT MERGE] Update platform security string to 2018-12-05 bug: 117667960 (cherry picked from commit 7af38a13)
  [DO NOT MERGE] Update platform security String to 2018-12-01 bug:117667960 (cherry picked from commit b43ff9d8)

Change-Id: Ieb09dd3032de96a24b90217b4274fd6601629a21