drm/sti: Fix typos in a comment line

Adjust this description for a function call.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Link: http://patchwork.freedesktop.org/patch/msgid/e70bf37b-a461-873e-4ba3-40bf43cc7b21@users.sourceforge.net

drivers/gpu/drm/sti/sti_tvout.c

@@ -846,7 +846,7 @@ static int sti_tvout_probe(struct platform_device *pdev)
 
 	tvout->dev = dev;
 
-	/* get Memory ressources */
+	/* get memory resources */
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "tvout-reg");
 	if (!res) {
 		DRM_ERROR("Invalid glue resource\n");