The attached phy finding is open coded. Now we can replace it with
sas_find_attached_phy_id(). To keep consistent, the return value of
hisi_sas_dev_found() is also changed to -ENODEV after calling
sas_find_attathed_phy_id() failed.
Signed-off-by: Jason Yan<yanaijie@xxxxxxxxxx>
Reviewed-by: Jack Wang<jinpu.wang@xxxxxxxxx>
Reviewed-by: Damien Le Moal<damien.lemoal@xxxxxxxxxxxxxxxxxx>
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