scsi: hisi_sas: allocate different SAS address for directly attached situation

driver inclusion
category: bugfix
bugzilla: NA
CVE: NA

Currently we fake SATA disks' SAS address with phy id. But for v3 hw, it
has two SAS controllers, so two SATA disks may have the same SAS address
if two SATA disks are connected with the same phy but different SAS
controller for directly attached situation.
To solve the issue, fake SATA disks' SAS address with host_no + phy id.

Signed-off-by: chenxiang (M) <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>