When Ansible runs under Python 2, such as on SuSE 15, we need
python2-pip for pip: to work. Update the default to install Python 2
deps when Ansible is running under v2.
Additionally for SuSE, as described inline we can have pip but not
setuptools. Put in a work-around to always pull in the setuptools
package. Pull this out into a separate file; history has shown that
we may need more :/
Change-Id: I450171aad5e31d2925239ab3d0641cd23f6815a2
b4c195b419