XXXX pass in cpu_pause_func via pause_cpus

*** 813,823 ****
                           */
                          afar = (uint64_t)(cache_info->index
                              << PN_CACHE_LINE_SHIFT);
                          mutex_enter(&cpu_lock);
                          affinity_set(cache_info->cpu_id);
!                         (void) pause_cpus(NULL);
                          mutex_exit(&cpu_lock);
                          /*
                           * We bind ourself to a CPU and send cross trap to
                           * ourself. On return from xt_one we can rely on the
                           * data in clop being filled in. Normally one would
--- 813,823 ----
                           */
                          afar = (uint64_t)(cache_info->index
                              << PN_CACHE_LINE_SHIFT);
                          mutex_enter(&cpu_lock);
                          affinity_set(cache_info->cpu_id);
!                         (void) pause_cpus(NULL, NULL);
                          mutex_exit(&cpu_lock);
                          /*
                           * We bind ourself to a CPU and send cross trap to
                           * ourself. On return from xt_one we can rely on the
                           * data in clop being filled in. Normally one would