Update to kernelci prevents provisioning of new box

Issue Background

Various changes have been recently made to kernelci, this causes provisioning to exit with an error.

Issue description

Initially get a storage_certname as undefined, once that is fixed - see the new kernelci-backend install information, other errors are produced, the install needs a second ansible call (like the frontend has). The nginx instance is not listening on port 8888 until the box has been rebooted and then there are nginx install errors.

Acceptance criteria

When vagrant up on a fresh box works without errors.