dmaengine: idxd: move wq irq enabling to after device enable

Move the calling of request_irq() and other related irq setup code until
after the WQ is successfully enabled. This reduces the amount of
setup/teardown if the wq is not configured correctly and cannot be enabled.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/164642777730.179702.1880317757087484299.stgit@djiang5-desk3.ch.intel.com


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