OMAP4: DSS2: Add display type HDMI to DSS2

Adding display type HDMI in dss_features, overlay and the manager so that
HDMI type of display will be recognized.

Signed-off-by: Mythri P K <mythripk@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
index 06b18f7..aa16222 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -130,7 +130,7 @@
 	OMAP_DISPLAY_TYPE_DBI | OMAP_DISPLAY_TYPE_DSI,
 
 	/* OMAP_DSS_CHANNEL_DIGIT */
-	OMAP_DISPLAY_TYPE_VENC,
+	OMAP_DISPLAY_TYPE_VENC | OMAP_DISPLAY_TYPE_HDMI,
 
 	/* OMAP_DSS_CHANNEL_LCD2 */
 	OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI |