drm/omap: omap_display_timings: Use display_flags for h/vsync level

In preparation to move the stack to use the generic videmode struct for
display timing information use display_flags for h/vsync level.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c
index a367b61..d98a16e 100644
--- a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c
+++ b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c
@@ -53,12 +53,11 @@ static struct omap_video_timings td028ttec1_panel_timings = {
 	.vsync_len	= 2,
 	.vback_porch	= 2,
 
-	.vsync_level	= OMAPDSS_SIG_ACTIVE_LOW,
-	.hsync_level	= OMAPDSS_SIG_ACTIVE_LOW,
-
 	.data_pclk_edge	= OMAPDSS_DRIVE_SIG_FALLING_EDGE,
 	.de_level	= OMAPDSS_SIG_ACTIVE_HIGH,
 	.sync_pclk_edge	= OMAPDSS_DRIVE_SIG_RISING_EDGE,
+
+	.flags		= DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW,
 };
 
 #define JBT_COMMAND	0x000