fix conditionals for hwpstate.

ansible/roles/cpu/tasks/freebsd_intel.yaml

@@ -29,14 +29,14 @@
       dest: /etc/rc.conf.d/power_profile
 
 - name: Install packages
-  when: not hwpstate
+  when: hwpstate is defined and not hwpstate
   package:
     name:
       - powerdxx
     state: present
 
 - name: Install service configuration
-  when: not hwpstate
+  when: hwpstate is defined and not hwpstate
   copy:
     src: "files/{{ item.src }}"
     dest: "{{ item.dest }}"