Add DT data for OMAP3 IGEPv2 board. The board has the following displays:

dvi: uses TFP410 encoder to convert DPI to DVI
Signed-off-by: NJavier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: NTony Lindgren <tony@atomide.com>