install the common package in the common recipe

This fixes a bug on SUSE where the openstack-cinder (common) package
would not be installed when the template in recipes/cinder-common.rb is
created. That package requires the openstack-cinder user which is
created by the openstack-cinder package.

Change-Id: I745d5d32cc70bd2660a734821a682900f3d1043d