PUBAPI-453: Upgrade tests to do not add extra packages for resize (reuse headnode ones).
PUBAPI-453: Upgrade tests to do not add extra packages for resize (reuse headnode ones).

joyent/sdc-cloudapi,arekinath/sdc-cloudapi,misterbisson/sdc-cloudapi,KrisShannon/sdc-cloudapi,KrisShannon/sdc-cloudapi,misterbisson/sdc-cloudapi,joyent/sdc-cloudapi,arekinath/sdc-cloudapi