ARM: OMAP: Fix warning in lcdc.c

Fix warning

drivers/video/omap/lcdc.c:878: warning: initialization from
incompatible pointer type
Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

drivers/video/omap/lcdc.c

@@ -611,9 +611,9 @@ static void omap_lcdc_resume(void)
 	}
 }
 
-static unsigned long omap_lcdc_get_caps(void)
+static void omap_lcdc_get_caps(int plane, struct omapfb_caps *caps)
 {
-	return 0;
+	return;
 }
 
 int omap_lcdc_set_dma_callback(void (*callback)(void *data), void *data)