drm/omap: omap_display_timings: rename hfp to hfront_porch

In preparation to move the stack to use the generic videmode struct for
display timing information rename the hfp member to hfront_porch.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

drivers/gpu/drm/omapdrm/displays/panel-tpo-td043mtea1.c

@@ -79,7 +79,7 @@ static const struct omap_video_timings tpo_td043_timings = {
 	.pixelclock	= 36000000,
 
 	.hsync_len	= 1,
-	.hfp		= 68,
+	.hfront_porch	= 68,
 	.hbp		= 214,
 
 	.vsw		= 1,