drm: omapdrm: Rename omap_gem_(get|put)_paddr() to omap_gem_(un)pin()

The reflects the purpose of the function better.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
5 files changed