scsi: hisi_sas: Remove sleep after issue phy reset if sas_smp_phy_control() fails

At expander environment, we delay after issue phy reset to wait for
hardware to handle phy reset. But if sas_smp_phy_control() fails, the
delay is unnecessary so remove it.

Link: https://lore.kernel.org/r/1567774537-20003-5-git-send-email-john.garry@huawei.com


Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>