sparc: Annotate of_device_id arrays with const or __initdata.

As suggested by Stephen Rothwell.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/video/ffb.c b/drivers/video/ffb.c
index 7992b13..9dbb964 100644
--- a/drivers/video/ffb.c
+++ b/drivers/video/ffb.c
@@ -1042,7 +1042,7 @@
 	return 0;
 }
 
-static struct of_device_id ffb_match[] = {
+static const struct of_device_id ffb_match[] = {
 	{
 		.name = "SUNW,ffb",
 	},