Add hwmod data for dss core, dispc dsi1, dsi2, rfbi and hdmi. It's more
or less similar to omap4 hwmod data.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>