Switch dsvm-docker as a Nova check jobs

check-tempest-dsvm-docker is running as a silent
non-voting job for a while now. Let us promote this
job to the check queue instead as Nova trunk changes
have been breaking the docker driver code and this
will enable us to spot problems quickly. We are still
running this as a non-voting job.

Example of Nova trunk changes breaking the driver:
I06a2d02e65cd3eb0813caf3972013500d94d493c

Change-Id: I374feb538eb30a56b9d030545a7f4223d677e760
Merge "Switch dsvm-docker as a Nova check jobs"