iommu/vt-d: Make size of operands same in bitwise operations

This addresses the following issue reported by klocwork tool:

 - operands of different size in bitwise operations

Suggested-by: Yongwei Ma <yongwei.ma@intel.com>
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Link: https://lore.kernel.org/r/20230406065944.2773296-2-tina.zhang@intel.com


Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>