Merge changes from topic "u-boot v2019.10"

* changes:
  Revert "Hack in random, but valid MAC address in arm64 base image"
  Fix bug that breaks booting in U-Boot v2019.10
tree: eeff1f9adaa90e2c11cc2aa380eeb2388e5db682
  1. common/
  2. guest/
  3. host/
  4. tests/
  5. tools/
  6. Android.bp
  7. Android.mk
  8. OWNERS
  9. TEST_MAPPING