Read device state config xml from bootconfig on boot

- create qemu-device-state vendor exec to write
  device_state_configuration.xml to /data/vendor/devicestate/
- init copies over it to /data/system/devicestate/
- only applies to foldable/rollable AVDs

Bug: 197562702

Test: run foldable/rollable AVDs

Change-Id: Ie831fb6e29a8768172b095d6a190afdf9a051f67
10 files changed