In P, run_cmd(poweroff_cmd) can work to trigger /sbin/poweroff. Now in R, it can not work but still return success. We need to use kernel_power_off() to trigger power off for factory kill. The change is referring to (CR). Change-Id: Ia18faee3138259c7ee35946313e9b0dac75dd244 Signed-off-by: xieqiong2 <xieqiong2@lenovo.com> Reviewed-on: https://gerrit.mot.com/1763914 SLTApproved: Slta Waiver SME-Granted: SME Approvals Granted Tested-by: Jira Key Reviewed-by: Xiangpo Zhao <zhaoxp3@motorola.com> Submit-Approved: Jira Key