dmaengine: idxd: add ATS disable knob for work queues

mainline inclusion
from mainline-v5.11
commit 92de5fa2
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I596WO


CVE: NA

Intel-SIG: commit 92de5fa2 dmaengine: idxd: add ATS disable knob for work queues.
Incremental backporting patches for DSA/IAA on Intel Xeon platform.

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

With the DSA spec 1.1 update, a knob to disable ATS for individually is
introduced. Add enabling code to allow a system admin to make the
configuration through sysfs.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/160530810593.1288392.2561048329116529566.stgit@djiang5-desk3.ch.intel.com


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