scsi: hisi_sas: change ncq process for v3 hw

scsi: hisi_sas: change ncq process for v3 hw

BugLink: http://bugs.launchpad.net/bugs/1756094
For v3 hw, each NCQ will return a CQ, so it is no need to acquire IPTT from
ITCT, just acquire it from IPTT field of CQ.

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>
(cherry picked from commit 9f347b2face51d782d1e03f2f05b7c3f93a6dc9a)
Signed-off-by: Manoj Iyer <manoj.iyer@canonical.com>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>