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>
diff --git a/drivers/gpu/drm/omapdrm/omap_connector.c b/drivers/gpu/drm/omapdrm/omap_connector.c
index 8662039..2399a6f 100644
--- a/drivers/gpu/drm/omapdrm/omap_connector.c
+++ b/drivers/gpu/drm/omapdrm/omap_connector.c
@@ -48,7 +48,7 @@ void copy_timings_omap_to_drm(struct drm_display_mode *mode,
 	mode->clock = timings->pixelclock / 1000;
 
 	mode->hdisplay = timings->hactive;
-	mode->hsync_start = mode->hdisplay + timings->hfp;
+	mode->hsync_start = mode->hdisplay + timings->hfront_porch;
 	mode->hsync_end = mode->hsync_start + timings->hsync_len;
 	mode->htotal = mode->hsync_end + timings->hbp;
 
@@ -82,7 +82,7 @@ void copy_timings_drm_to_omap(struct omap_video_timings *timings,
 	timings->pixelclock = mode->clock * 1000;
 
 	timings->hactive = mode->hdisplay;
-	timings->hfp = mode->hsync_start - mode->hdisplay;
+	timings->hfront_porch = mode->hsync_start - mode->hdisplay;
 	timings->hsync_len = mode->hsync_end - mode->hsync_start;
 	timings->hbp = mode->htotal - mode->hsync_end;