dmaengine: idxd: fix desc->vector that isn't being updated

mainline inclusion
from mainline-v5.14
commit 8ba89a3c
category: bugfix
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I596WO


CVE: NA

Intel-SIG: commit 8ba89a3c dmaengine: idxd: fix desc->vector that isn't being updated.
Incremental backporting patches for DSA/IAA on Intel Xeon platform.

--------------------------------

Missing update for desc->vector when the wq vector gets updated. This
causes the desc->vector to always be at 0.

Fixes: da435aed ("dmaengine: idxd: fix array index when int_handles are being used")
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/162628784374.353761.4736602409627820431.stgit@djiang5-desk3.ch.intel.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Xiaochen Shen <xiaochen.shen@intel.com>