Code review comment for lp://staging/~morphis/goget-ubuntu-touch/add-turbo-bootstrap-support

verified the prebuilt one [1] and it works fine on latest engineer mode recovery which enabled adb[2] by command:
$ ubuntu-device-flash touch --channel ubuntu-touch/rc-proposed/meizu.en --recovery-image=${the-recovery[2]}.img --bootstrap --device turbo

[1] https://private-fileshare.canonical.com/~morphis/ubuntu-device-flash
[2] https://git.launchpad.net/~device-release/turbo/+git/recovery/plain/recovery.img