dmaengine: idxd: remove trailing white space on input str for wq name

mainline inclusion
from mainline-v5.19
commit 81f5eb2b
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I596WO


CVE: NA

Intel-SIG: commit 81f5eb2b dmaengine: idxd: remove trailing white space on input str for wq name.
Incremental backporting patches for DSA/IAA on Intel Xeon platform.

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

Add string processing with strim() in order to remove trailing white spaces
that may be input by user for the wq->name.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/164789525123.2799661.13795829125221129132.stgit@djiang5-desk3.ch.intel.com


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