Merge remote-tracking branch 'aosp/android-8.1.0_r64' into oreo-x86

Android 8.1.0 Release 64 (OPM8.190505.001)

diff --cc default.xml
index 2d83b8a,167c8ed..0595093
--- 1/default.xml
--- 2/default.xml
+++ b/default.xml
@@@ -2,10 -2,10 +2,10 @@@
  <manifest>
  
    <remote  name="aosp"
 -           fetch=".."
 -           review="https://android-review.googlesource.com/" />
 +           fetch="https://android.googlesource.com/" />
-   <default revision="refs/tags/android-8.1.0_r60"
+   <default revision="refs/tags/android-8.1.0_r64"
             remote="aosp"
 +           sync-c="true"
             sync-j="4" />
  
    <project path="build/make" name="platform/build" groups="pdk" >