(IAC-527) fix idempotency issues with oracle linux
(IAC-527) fix idempotency issues with oracle linux

Installing the policycoreutils-python changes how puppet reacts in SELinux
enabled systems. Pre-installing them avoids that.

buzzdeee/puppetlabs-postgresql,buzzdeee/puppetlabs-postgresql,puppetlabs/puppetlabs-postgresql,puppetlabs/puppetlabs-postgresql,puppetlabs/puppetlabs-postgresql,buzzdeee/puppetlabs-postgresql