scsi: libsas: Use sas_phy_match_port_addr() instead of open coding it

The SAS address comparison of asd_sas_port and expander phy is open
coded. Replace it with sas_phy_match_port_addr().

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Link: https://lore.kernel.org/r/20220928070130.3657183-9-yanaijie@huawei.com
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>