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/sbus/char/uctrl.c b/drivers/sbus/char/uctrl.c
index 6cff977..27993c3 100644
--- a/drivers/sbus/char/uctrl.c
+++ b/drivers/sbus/char/uctrl.c
@@ -417,7 +417,7 @@
 	return 0;
 }
 
-static struct of_device_id uctrl_match[] = {
+static const struct of_device_id uctrl_match[] = {
 	{
 		.name = "uctrl",
 	},