Full factory reset

[adeebshihadeh]

Part of #59.

flash.comma.ai should be able to bring a device into a complete factory state (except giving your device a new private key):

• I pushed all the images to agnos-builder. We need to generate a manifest of all the images, just like we do with ota.json for AGNOS OTA updates.
• Here's the code for our internal QDL flasher we run in production:

      print("Connecting...")
      try:
        f, info = connect(device, False)
      except Exception:
        f, info = connect(device, True)
      soc_serial = info['serial']
      device_info['hardware_id'] = info['msm_hw_id']

      device_info['serial'] = f.get_android_serial()

      print("Serial: %s" % device_info['serial'])
      print("SOC Serial: %s" % soc_serial)
      logger.log_start(device_info)

      # Erase device
      for lun in range(6):
        print(f"Erasing lun {lun}")
        f.erase_lun(lun)

      # Flash partition tables
      print("Flashing partition tables")
      for lun, name, start_sector, num_sectors, hashsum in PARTITION_TABLES:
        print(f"Programming '{name}'")
        safe_program_raw(f, lun, start_sector, num_sectors, f"{BASE_FIRMWARE_PATH}/{name}.bin", hashsum)

      # Fix lun partition table (resizes userdata), since different UFS chips have a slight variance in total size
      print("Fixing lun 0 and 5 partition table")
      f.fix_gpt(lun=0)
      f.fix_gpt(lun=5)

      # Flash all partitions
      for lun, name, filename, hashsum in QDL_FLASH_ARRAY:
        safe_program_partition(f, lun, name, f"{BASE_FIRMWARE_PATH}/{filename}", hashsum)

      # Set bootable LUN
      f.set_bootable_storagedrive(lun=1)

      # Reboot
      f.reset()