Merge "Write AB_OTA_POSTINSTALL_CONFIG to META/postinstall_config.txt." am: 99d5f361b4 am: 48ea511512
am: 0cac39037d

* commit '0cac39037d68e6efc9caa2745d1ff41e22c8f6a3':
  Write AB_OTA_POSTINSTALL_CONFIG to META/postinstall_config.txt.