iommu/dart: Add missing module owner to ops structure

This is required to make loading this as a module work.
Signed-off-by: Hector Martin <marcan@marcan.st>
Fixes: 46d1fb07 ("iommu/dart: Add DART iommu driver")
Reviewed-by: Sven Peter <sven@svenpeter.dev>
Link: https://lore.kernel.org/r/20220502092238.30486-1-marcan@marcan.stSigned-off-by: Joerg Roedel <jroedel@suse.de>

drivers/iommu/apple-dart.c

@@ -773,6 +773,7 @@ static const struct iommu_ops apple_dart_iommu_ops = {
 	.get_resv_regions = apple_dart_get_resv_regions,
 	.put_resv_regions = generic_iommu_put_resv_regions,
 	.pgsize_bitmap = -1UL, /* Restricted during dart probe */
+	.owner = THIS_MODULE,
 	.default_domain_ops = &(const struct iommu_domain_ops) {
 		.attach_dev	= apple_dart_attach_dev,
 		.detach_dev	= apple_dart_detach_dev,