dmaengine: idxd: fix setup sequence for MSIXPERM table

dmaengine: idxd: fix setup sequence for MSIXPERM table

The MSIX permission table should be programmed BEFORE request_irq()
happens. This prevents any possibility of an interrupt happening before the
MSIX perm table is setup, however slight.

Fixes: 6df0e6c57dfc ("dmaengine: idxd: clear MSIX permission entry on shutdown")
Sign-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/162456741222.1138073.1298447364671237896.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>