linux-phytec-fsl

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>