am bddce34c: am 065c4180: Merge "Revert "Use aarch64-linux-android-4.9 for arm64 build (attempt #2)""

* commit 'bddce34c160846ab67907fcbec0f6a6f838c20d4':
  Revert "Use aarch64-linux-android-4.9 for arm64 build (attempt #2)"