Fix requirements-check bug in host deployment playbook.
Fix requirements-check bug in host deployment playbook.

DimensionDataResearch/daas-demo,DimensionDataResearch/daas-demo,DimensionDataResearch/daas-demo,DimensionDataResearch/daas-demo,DimensionDataResearch/daas-demo,DimensionDataResearch/daas-demo,DimensionDataResearch/daas-demo