iommu/vt-d: Fix 'physical' typos

Fix misspellings of "physical".

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/linux-iommu/20210126211738.2920789-1-helgaas@kernel.org
Link: https://lore.kernel.org/r/20210204014401.2846425-2-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

Author: bjorn-helgaas

include/linux/intel-iommu.h

@@ -664,7 +664,7 @@ static inline struct dmar_domain *to_dmar_domain(struct iommu_domain *dom)
  * 7: super page
  * 8-10: available
  * 11: snoop behavior
- * 12-63: Host physcial address
+ * 12-63: Host physical address
  */
 struct dma_pte {
 	u64 val;