qa_crowbarsetup.sh: mount crowbar ISO for cloud8 GM
qa_crowbarsetup.sh: mount crowbar ISO for cloud8 GM

When the `GM8` and `GM8+up` cloudsource values are used, the
Ardana flavor ISO is installed instead of the Crowbar one.

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