qa_crowbarsetup: call oncontroller the same way as onadmin
qa_crowbarsetup: call oncontroller the same way as onadmin

Now call the function oncontroller_foobar on the controller via:
oncontroller foobar
Its now the same as with onadmin.

gosipyan/automation,aspiers/automation,aspiers/automation,SUSE-Cloud/automation,vmoravec/automation,vmoravec/automation,vmoravec/automation,gosipyan/automation,aspiers/automation,SUSE-Cloud/automation,aspiers/automation,SUSE-Cloud/automation,vmoravec/automation,SUSE-Cloud/automation,gosipyan/automation,gosipyan/automation