5285 pass in cpu_pause_func via pause_cpus
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Approved by: Gordon Ross <gwr@nexenta.com>
Author: Josef 'Jeff' Sipek <josef.sipek@nexenta.com>

illumos/illumos-gate@0ed5c46e82c989cfa9726d9dae452e3d24ef83be