iommu/vt-d: Rename domain_add_dev_info()

dmar_domain_attach_device() is more meaningful according to what this
helper does.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20221118132451.114406-6-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

Author: LuBaolu

drivers/iommu/intel/iommu.c

@@ -2453,7 +2453,8 @@ static int __init si_domain_init(int hw)
 	return 0;
 }
 
-static int domain_add_dev_info(struct dmar_domain *domain, struct device *dev)
+static int dmar_domain_attach_device(struct dmar_domain *domain,
+				     struct device *dev)
 {
 	struct device_domain_info *info = dev_iommu_priv_get(dev);
 	struct intel_iommu *iommu;
@@ -4288,7 +4289,7 @@ static int intel_iommu_attach_device(struct iommu_domain *domain,
 	if (ret)
 		return ret;
 
-	return domain_add_dev_info(to_dmar_domain(domain), dev);
+	return dmar_domain_attach_device(to_dmar_domain(domain), dev);
 }
 
 static int intel_iommu_map(struct iommu_domain *domain,