mkcloud: Avoid hang on collecting supportconfig
mkcloud: Avoid hang on collecting supportconfig

If the cloud install went really berserk, the supportconfig
run will hang endlessly, blocking further jobs. Timeout
after a while.

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