use new python_packages attributes from -common

*_python_packages attributes are being moved to -common in order to
 remove the duplication from all the cookbooks which are using them

 Implements: blueprint move-python-db-client-attrs-to-common

Change-Id: Ifb77c999854d6d6648dd39443409f2ae2593033f
Merge "use new python_packages attributes from -common"