iommu/omap: Remove comment about supporting single page mappings only

The IOMMU core breaks out mappings into pages already, there's no
need to support mapping multiple pages in one go.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sakari Ailus <sakari.ailus@iki.fi>

drivers/iommu/omap-iommu.c

@@ -1068,7 +1068,6 @@ static int omap_iommu_map(struct iommu_domain *domain, unsigned long da,
 	int omap_pgsz;
 	u32 ret, flags;
 
-	/* we only support mapping a single iommu page for now */
 	omap_pgsz = bytes_to_iopgsz(bytes);
 	if (omap_pgsz < 0) {
 		dev_err(dev, "invalid size to map: %d\n", bytes);