Fix updating setuptools in Centos

In RHEL-based distributions, updating setuptools using pip removes the
files from the python3-setuptools RPM. It breaks some tools such as
semanage (which is used by diskimage-builder) that use the -s flag of
the python interpreter (don't import modules from /usr/local).
This commit reinstalls python3-setuptools to fix those applications.

Change-Id: Ib44857e83f75acf37823fae912960a801c83cf7f
1 file changed