Fix package dependencies for SuSE/openSuSE

* Official package name of PyYAML is "python-PyYAML" on openSUSE, not "python-yaml" (see http://software.opensuse.org/package/python-PyYAML)
* Official package name of Jinja2 is "python-Jinja2" on openSUSE, not "python-jinja2" (see http://software.opensuse.org/package/python-Jinja2)
* python-setuptools is not necessary to build ansible on SUSE/openSUSE (distutils in the Python Standard Library is sufficient)