XXXX pass in cpu_pause_func via pause_cpus

@@ -408,11 +408,11 @@
  * prom functions are callable while the cpus are paused.
  */
 void
 promsafe_pause_cpus(void)
 {
-        pause_cpus(NULL);
+        pause_cpus(NULL, NULL);
 
         /* If some other cpu is entering or is in the prom, spin */
         while (prom_cpu || mutex_owner(&prom_mutex)) {
 
                 start_cpus();

@@ -421,11 +421,11 @@
                 /* Wait for other cpu to exit prom */
                 while (prom_cpu)
                         cv_wait(&prom_cv, &prom_mutex);
 
                 mutex_exit(&prom_mutex);
-                pause_cpus(NULL);
+                pause_cpus(NULL, NULL);
         }
 
         /* At this point all cpus are paused and none are in the prom */
 }