Fail puppet-lint on warnings

Puppet-lint will now fail if there is any warnings.

Disable 'class_inherits_from_params_class' check.

Change-Id: Ia1d7fa5109178f040b00abcdb3f7d84c4bdf58b4
(cherry picked from commit 48ac3fb090451b9c446a438ba5fbdc1999cb167a)