change test to use SLES platform instead of openSUSE

Change-Id: I71a6628c2c84dcd09d073528381eb295ecc33f7d
Cleaning up berks/metadata dependencies

Change-Id: I5a24fbbe8c5bb33646fcffd83971ce4fe982a14c
Merge "change test to use SLES platform instead of openSUSE"
Add ChefSpec::Coverate to spec_helper.rb

Change-Id: I96db2b0c255c044598bd55b39e7003a7125803ef
Addresses: blueprint lint-and-unit-testing-for-havana