Update params.pp

This can be used on Suse flavors via adding two repos:
A) for recent puppet packages: https://build.opensuse.org/project/show/systemsmanagement:puppet (holding the actual rubygem-ruby-augeas package, official repos only include python-augeas *grrr*)
B) for dependency rubygems on SLES 11 add the SLE11-SDK repo available from Novell, openSuSE status unknown