sparc: kernel: apc: make of_device_ids const

of_device_ids are not supposed to change at runtime. All functions
working with of_device_ids provided by <linux/of.h> work with const
of_device_ids. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

arch/sparc/kernel/apc.c

@@ -167,7 +167,7 @@ static int apc_probe(struct platform_device *op)
 	return 0;
 }
 
-static struct of_device_id apc_match[] = {
+static const struct of_device_id apc_match[] = {
 	{
 		.name = APC_OBPNAME,
 	},