NVMe: Set affinity after allocating request queues

NVMe: Set affinity after allocating request queues
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The asynchronous namespace scanning caused affinity hints to be set before
its tagset initialized, so there was no cpu mask to set the hint. This
patch moves the affinity hint setting to after namespaces are scanned.

Reported-by: 김경산 <ks0204.kim@samsung.com>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
(cherry picked from commit bda4e0fb3126aca15586d165b5a15a37edc0a984)

Orabug: 25130845
Conflicts:
        Manually patched the commit.
        drivers/block/nvme-core.c

Signed-off-by: Ashok Vairavan <ashok.vairavan@oracle.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>