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/display.c b/drivers/video/omap2/dss/display.c
index 7d96b72..c40bcbd 100644
--- a/drivers/video/omap2/dss/display.c
+++ b/drivers/video/omap2/dss/display.c
@@ -342,6 +342,7 @@
 			return 16;
 	case OMAP_DISPLAY_TYPE_VENC:
 	case OMAP_DISPLAY_TYPE_SDI:
+	case OMAP_DISPLAY_TYPE_HDMI:
 		return 24;
 	default:
 		BUG();
@@ -368,6 +369,7 @@
 	case OMAP_DISPLAY_TYPE_DPI:
 		bpp = dssdev->phy.dpi.data_lines;
 		break;
+	case OMAP_DISPLAY_TYPE_HDMI:
 	case OMAP_DISPLAY_TYPE_VENC:
 	case OMAP_DISPLAY_TYPE_SDI:
 		bpp = 24;