dmaengine: idxd: fix boolconv.cocci warnings

Remove unneeded conversion to bool

Generated by: scripts/coccinelle/misc/boolconv.cocci

CC: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Julia Lawall <julia.lawall@inria.fr>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/alpine.DEB.2.21.2001301543150.7476@hadrien


Signed-off-by: Vinod Koul <vkoul@kernel.org>