Add opensuse leap to the kitchen config

Signed-off-by: Tim Smith <tsmith@chef.io>

.kitchen.yml

@@ -15,6 +15,7 @@ platforms:
   - name: fedora-25
     run_list: yum::dnf_yum_compat
   - name: opensuse-13.2
+  - name: opensuse-leap-42.1
   - name: ubuntu-12.04
     run_list: apt::default
   - name: ubuntu-14.04