Merge tag 'android-8.1.0_r47' into staging/lineage-15.1_merge-android-8.1.0_r47

Android 8.1.0 release 47

* tag 'android-8.1.0_r47':
  Version bump to OPM7.181005.003
  Version bump to OPM7.181005.002
  DO NOT MERGE Update platform security string to 2018-10-05 bug:112535135 (cherry picked from commit 090027fb)

Change-Id: I6dfbdfcddde32908e8f9054d4a35237b9cda9d68