scsi: hisi_sas: Delete PHY timers when rmmod or probe failed

When removing the driver or when probe fails, we need to delete the PHY
timers.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>