This is making some tests fail in the CI like following:
```
+ /tmp/venv.LBZdiW0Nx4/bin/tox --workdir=/tmp/tox.pQhNDR2lrs -vre
xenial-bluestore-mixed_type -- --provider=libvirt
using tox.ini:
/home/jenkins-build/build/workspace/ceph-volume-scenario/src/ceph-volume/ceph_volume/tests/functional/lvm/tox.ini
(pid 1864)
ERROR: unknown environment 'xenial-bluestore-mixed_type'
```
it's picking up the wrong tox.ini file because SUBCOMMAND isn't injected
as it should be.
Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
current-parameters: true
predefined-parameters: |
SCENARIO=xenial-bluestore-mixed_type
+ SUBCOMMAND=batch
- name: ceph-volume-scenario
current-parameters: true
predefined-parameters: |